I think the way stun is calculated should be changed or the amount of stun avoidance to cap should lower.
I think playing classes like warpath with full immunity is unfair (yeah that was my main because of this and full screen clear)
Going back on posted 2-3 years here and reddit it’s been mentioned before.
TL;DR - bro short post, stun change, please 
PS yeah I know there are some items and idols but doesn’t take away from the mechanic being old and cruddy <3