New talents came in MoP not cata. And yes, a lot of us wanted those old talents gone, old talents trees are stupid lmao. People left in cata because of the guild system and dungeons.
Sure, doesn’t change the fact that they were necessary given how the game has been changing over the years.
And? that’s besides the point. By the time people found out, it was already in production. You can’t make a mobile game suddenly PC so they could only cut it or release, it’s obvious what route they would take.