While I agree with the current status quo, I don't think that it is too hard to break the vendor lock-in here. Most ML people code against pytorch or tensorflow

While I agree with the current status quo, I don't think that it is too hard to break the vendor lock-in here. Most ML people code against pytorch or tensorflow/keras APIs, so as long as AMD is a viable backend for these frameworks, people won't really care. But whether and when this will happen is another story.