How can you watch how Deandre Ayton has developed and not get excited about Moses Brown? Ayton clearly has more overall talent and skill and has been ahead of him all along the way but they are similar players. Both had one year of big time college basketball but Ayton has 3 seasons of NBA work (well, 2 plus a COVID season), where Brown really has only 1 partial season of real NBA experience.
Part of the reason that Ayton has more NBA experience is that he is better but some of those early Suns teams were not great teams. There was an opportunity for a raw young player to get minutes, and opportunity that Brown did not get in Portland (and likely didn't earn).
The point is that even though Ayton does the things he does better right now (or at least more consistently), he is not doing any more than the things that Brown did last season on OKC. Dunks, put backs, ally-oops, rebounding, setting picks, and blocking shots. This is all Ayton can do but he did it well enough to impact a playoff game.
I agree Brown needs to improve but I don't think there needs to be a big push for him to expand his game. The initial focus should be to get better and more consistent with his core skill set, just be like Ayton, that is fine, great actually.