(1.) Hz. Musa Kazim was pawn of Abbasi Caliphs, he mustered support of Iran's Ithna Asheri followers to get Abbasi Caliph crowned on throne of Baghdad, and in return Abbasi Caliph will make his son Hz. Ali Reza the heir-apparent.
Proof of above state of affairs: Hz. Musa Kazim and Hz. Ali Reza were so enthralled by their commercial prospective that to please Abbas Caliphs Hz. Musa Kazim named his ONLY daughter after the name of "Aaisha", and ditto by Ali Reza, he too kept his daughter name as "Aaisha".
In Shia world - "Aaisha" was one who came to fight war against Mola Ali a.s. in 'Jung a Jamal', she also lead the band who fired arrows on the dead body of Imam Hasan a.s. and she throughout kept animosity with Panjatan a.s., so in Shia world, the name "Aaisha" is forbidden to be kept for Shi'a daughters and this name is most disliked by Shia. The time distance between (Musa Kazim / Ali Reza) and Aaisha bint Abu Bakr was approx. ONE HUNDRED AND FIFTY YEARS, so in Shia world, by the time of these two alleged Imams there was no trend to keep name "Aaisha".
So the fact that those two alleged Imams kept their daughters name as "Aaisha", is proof that they were inclined towards material gain of becoming heir-apparent and then king, and they were least bothered about Shia-sentiments. They were more interested in promoting their personal career than promoting Shia cause.
Also it is very upsetting that Hz. Musa Kazim mustered support to make enemy (Abbasi caliph) crown the throne of Baghdad!
(2.) The time distance between martyrdom of (Mola Ali, Karbala event) and (Musa Kazim & Ali Reza) is approx. 125-150 years. The trend to keep ones children's name like Marwan, Mawiya, Yazeed, Shimar, etc died long back in the Shia world.
Hz. Musa Kazim and Hz. Ali Reza 125-150 years after Mola Ali a.s & Imam Hussain a.s. martyrdom, to make Abbasi Caliph happy, they promoted among their Ithna Asheri followers to keep their children name like Yazeed, Shimar, Marwan, Mawiya and alike.
The proof of this is Ithna Asheri's own publicly begged hadith collection book called: Usool-e-Kafi. Check the name of the tradition narrators, those are the prominent Ithna Asheri scholars of their time, scores and scores of those names are Yazeed, Shimar, Mawiya, et al.
So the Usul-e-Kafi itself is the living proof that Imams of Ithna Asheri's are NOT Shia's ROLE-MODEL, they are pawn of Abbasi Caliphs and were materialist in practice than a practicing Shia.
(3.) In Battle of Siffin our Mola Ali a.s. used white-color flag, his enemies used black color flag. Prophet gave a green color flag to Ali and that was later used by his progeny Fatimi Caliphs, besides they used white color flag.
The Abbasi caliphs who were enemies of Shia used black color for their flag and everyday attire. Till date their followers i.e. terrorist organizations like ISIS, Boko Haram, etc their outfit till date is fully black. So Hz. Musa Kazim and Hz Ali Reza to make their political aspiration savior the Abbasi caliph happy - made their followers to ditch the color of Prophet and Mola Ali (white and green) and copy the footsteps of Mawiya (battle of Siffin) and Abbasi caliphs, so till date ignorant Ithna Asheri clad like crow, showing they are party to Mawiya in Siffin and are with Abbasi doctrine, and don't care to match their act with Prophet and Ali a.s.
(4.) Prophet & Quran are all pro-mathematics, scores of verses speaks on fix number of days of Ramadan. So those who truly followed the footsteps of Panjatan and their progeny of Fatimi Imams were blessed to have a fix 30 days system of Ramadan.
Hz. Musa Kazim and Hz. Ali Reza followed the footsteps of Abbasi caliphs so till date their number of Ramadan days are not fixed, some year they are 29 days, other years of 30 days Ramadan, and in same year at some place 29 days and other place 30 days Ramadan. These all are non-compliance with Quran. So those two alleged Imams of Ithna Asheri took their followers away from Sirat-a-mustaqeem (command of Quran) and left them to follow the suit of Abbasi caliphs.
(5.) Why Mola Ali a.s. didn't claimed his right to caliphate after the martyrdom of Prophet s.a.? One of the reason was that 1-2-3 had hatched a scheme that if Ali claimed his right then they will start movement to get all new-Muslim to convert back to their original religion of Idol-worshipping. 1-2-3, Ummaiyyad and Abbasi caliphs they all are birds of same feather who on doctrine grounds have always flocked together.
Hz. Musa Kazim / Hz. Ali Reza and progeny too promoted the idol worshipping among their followers. They make statue of Imam Hussain and take its procession on road, they cut a metallic hand and regard it as symbol of Syyedi Abbas Alamdar a.s. severed hand - Ithna Asheri do its idol-worship by hanging flower garland on that metal hand, will burn scent-stick near it and they will kiss it as if that men-made hand can feel and bless the action of its Ithna Asheri worshipper. They keep jhoola, frocks, statue of horse, etc in their mosque/imam-bara.
Abbasi caliphs wanted to show Shia down, so to make mockery of Shia they via Hz. Musa Kazim, Hz. Ali Reza and progeny got the place of Allah's worship (mosque) turned into temple hosting idols!!!
Prophet Ibrahim a.s. made mockery of idol-worshippers, he beheaded all junior idols and made rosary of their head and hanged it over the neck of the biggest idol in temple. People inquired with him who did it? Prophet Ibrahim a.s. replied: Ask your the biggest idol on who the culprit is. Idol-worshippers replied: Neither he listen to us, nor can he reply our queries. Ibrahim a.s. said: Then why are you associating with them!!! Your act is in vain..... likewise are Ithna Asheri who make the hand shape by themselves, garland it, and kiss it, and seek blessings! But they forget the above Quranic verse about Ibrahim a.s. - those metal men-made hand neither feel nor can it bless!!!
Prophet Mohammad s.a. & Mola Ali a.s. broke the idols from the house of God (Kaaba) and Hz. Musa Kazin, Hz. Ali Reza and progeny established idols in the house of God!!!
Read the God's curse in Quran on those who started associating with the Golden Calf (statue worshipping).