Radeon Institint's Tensorflow support is heavily based upon community support and self-development. Researchers will have to put in a crap ton of money and human power to get it off the ground and going for any serious work.Some machine learning lab have looked into this at my institution. They were trying to develop their own Tensorflow pipeline for analyzing tumor biopsy to look for signs of metastasis. They spent a good year on it going nowhere. Ended up going back to the tried and true Nvidia solution. At least they only bought one MI25 so not a whole lot of capital lost on that.
Point is, Nvidia has absolute dominance in the ML/DL/AI hardware market. They have a very mature software ecosystem as well and a super good customer service team dedicated to researchers across the globe. It will take some serious effort from Intel to bite off a piece from this ever increasing pie.