Will gach, cubes etc. soon become illegal?

MS doesn't have collision detection good enough for that, sadly...I would love something like that, but at this point any "skill based" this game ever had even a tiny bit of is long since gone. They would need to restructure the entire game and the way it works for something like that to be doable. But we can wish.

I would think CWK, actual and JQ, would be enough proof to the inaccuracy of your stance.
Some of the things implemented there were considered impossible too, until the did them.