why is aim assist still a thing

@damsonwhufndthis
"everytime I spectated controller player, their aim could be however it is, but as soon as they had their crosshair on enemy, it never left the enemie's body, ever"
That could due to how aa slows down your aim when you are looking at a target in close range.
First thing I do as a console player is change my look sensitivities. Both regular and ads because that slow down of aim can actually prevent you from keeping up with a moving target. Without that slow down the aim is very jerky.

But this glue to effect? I can count on one hand the number of times I've actually seen the aa in apex pull to a target, only one of those being a player that wasn't knocked, the rest being knocked players and once the target dummy.
The most recent one strangely pushed away from the dummy when I side stepped closer to it.
I've even had the slow down effect just disappear in the middle of a fight and because of the higher look sensitivity needed to keep up with people my aim would just shoot right by them-because I'd be pushing my aim to keep up with them as they're moving.

I'm kind of wondering if controller aa on PC works differently? Which I don't get why it would be stronger when it's .4 when console gets .6?