We must realize one thing. The "deified" version of Ambedkar in currency amongst the present day Dalits is very different from what the person had been (and had not been) in course of history. The details / discussions in the link provided by you, and also the narration in Arun Shourie's book, "Worshipping False Gods," are evidences to this. Dalits badly needed an icon, and at that point of time, there was none other than Ambedkar available to play this role. The "deification" process has been taken to such extremes by now, that you may be inviting a Dalit "outrage" if you utter on any forum that Ambedkar was not the sole author of the Constitution, or that he had a lady British typist as a lover. Burning of buses and trains is expected to follow.
It is something similar to Dalit Christians violently protesting against the film, The Da Vinci Code, for suggesting that Mary Magdalene's relation with Jesus could have been more intimate. Simple facts and logic, such as the existence of Christian sects in southern France who worship Mary Magdalene as Jesus' wife, or for that matter as to what is wrong with it if a God / God Child has a wife, seem to escape them. All they could concentrate upon was the "outrage". No wonder Salman Rushdie says that this is the age of "manufactured outrages".
What did you think of thousands of Dalits visiting the Ambedkar Memorial in Mumbai on his death anniversary, and offerring Aarti, Agarbattis etc. to his statue? If you had seen the pictures on TV, in the background was a small idol of Buddha, and in the foreground was a large statue of Ambedkar being worshipped nearly obfuscating the Buddha idol. Can any parallels be drawn within Buddhism for this anywhere in the world? The next thing Ambedkarites may ask us to accept, is that Ambedkar was a "reincarnation" of Buddha. You may be aware of Prakash Ambedkar going to court for stopping the publication of the love-letters between B.R.Ambedkar and the British lady typist, and also the agitation by some Dalit leaders to ban Arun Shourie's book, "Worshipping False Gods".
I do not agree to your view-point that B.R.Ambedkar was "pro-Hindu". None of his writings indicate that, and infact some of them indicate to the contrary. If you are aware of any of his writings or deeds supportive of Hinduism, please quote the sources. I would like to go through. Even assuming that there are some, portraying B.R.Ambedkar as he was, would not be conducive to his "diety" status, and would still invite an "outrage", and not an understanding response.
When Aamir Khan's film, "Mangal Pandey - The Rising" was released, there were several articles notably by Dalit leaders of Tamilnadu, against Mangal Pandey who was a brahmin, being portrayed as a hero in the film. One of the articles was by Thiru. Rasa, the Dalit-CPI leader from Tamilnadu. The article went on harping on two points:
1.) Wherever victories were won in India for and against British, it was always because of Dalits who were great warriers, and who always successfully put down the Brahmin sabotagers (words like "ripping down" and "cutting down" the brahmins were liberally used).
2.) Whenever similar violent actions were committed against the Dalits, they were all atrocities.
No doubt some Dalit communities such as Mahars were martial races, and were picked up by the British selectively into their armies, but it is a jaundiced vision to see Indian Indepence struggle as a war between Dalits and Brahmins. Nevertheless, such nonsense appears to be having a sanction now because it is part of the "outrage".
Also, don't forget the display of Dalit Christian "outrage" in Srirangam and other places. It did not look very "pro-Hindu" to me.