Button bloat might end the game imho. Once enough folks get frustrated and leave it will cascade through que-times and elites chasing regulars away. Not only button bloat, but I remember the “original talent trees” that were changed because of “cookie cutter” build and yet here we are with more cookie cutter builds that make you choose active over passive talents or you just wont be picked to play.
I challenge Blizz to make the talent trees so balanced you can have a 10 button rotation or a 24 button rotation based on what makes the game fun for you and still BOTH be viable.