Yeah my roommate has a xim4 for cod on console, just because he likes it as a stress reliever to absolutely shit on people.
One free weekend on console, I tried it, granted I was level one with other level ones. Add my current knowledge, and it was like going to a playground of children batting heads like I was the sultan of swat.
It was baddd. My friend who is a console pleb even asking me if I was hacking. I never had more than 5 deaths, I was always 50+ kills, even had a game with 126 elims.
I can see why they're concerned, but how do you pick up a third party program that literally maps keyboard and mouse to your controller.. I'm sure there are more specifics but at the basis, that's all it is.