Not sure why people should be angry about an interesting analysis and point of view.
As you said, there are multiple sources of gear that has the potential to titanforge and by farming that content a lot, you can increase your chances to the point where titanforged gear is expected and raids need to be (over)tuned accordingly.
But if you disable group loot from mythic raids (and therefore make split farming mythic ToS in preparation for Antorus irrelevant), Method players will just run m+ all day instead, getting their 950s there.
I don't think that much would have changed all things considered. Playing 24/7 would still give you more chances for TF gear one way or another.