The point is that before the patch, that shot didn't happen, now it happens, just try it : tap Y in an end course, and that makes that magic moon shot very easily in some occasions (and you did it 2 or 3 times against me during our last game), especially when you are close to the net, which is not realistic at all.
What i mean here is that s&v game is already very hard to master at a high level : if you add these cheated lobs, it becomes obviously impossible to win against guys like you. It's logical you defend it, because it helps you win, but it's obviously a glitch because that strange shot didn't exist before.
Now i'm maybe not a top player in your mind, but i've reach the final of a master 1000 played by 128 players (us open = 85 signups ; Roger cup = 105 signups).
And if i've played the us open and the 2-3 tournaments afterwards i would surely be @ the master at the end of the season.
So sorry, but your argument "no top players complain about that so that doesn't exist" is pretty not relevant. I play the game since the beginning, and i really know what i'm talking about.