To be honest, I'm quite surprised they added petting to begin with. Don't get me wrong, I'm not praising the removal. I think the way it was done turned it more into a waste of time as a feature rather than anything of actual substance. You could do more, faster, and in a more engaging fashion by grinding pairs in MyCastle battles than that room feature, and it largely only further served to show the dissonance between voiced and text personality (which is one of the bigger caveats I have with the game. Looking at you, Dwyer and Nyx).
But it was quite a way to put off the original fans, mostly pandering to those that wanted it for its waifu/husbando elements, which has pretty much been their goal since Awakening. I can understand why, of course, but they had enough serve on their own to really win over that crowd. I personally don't have anything against it, but I probably wouldn't utilize it for the lot of the same reason I haven't played Nekopara.
I'd def pet my kids, though. Too many games these days are sorely missing headpats.