I have never been able to stun-lock or getting stun-locked playing with any HUMANS in the current system, so what makes you think AI is gonna be able to do that to me without cheating?
How many human battles consisted of 8 mages against your 4 player party? 2:1 or 3:1 is fairly common in SP, with all the extra CC that comes with it... CC that only fails now since AI is stupid.
Good luck breaking your lock with your other 3 characters if they're locked aswell. Once the AI learns, it's hell, absolute hell. That's no fun, and maybe you'll all actually get the "pleasure" to learn so too.