We have a previous report on this issue, you can find it here: https://answers.ea.com/t5/Bug-Reports/Mind-Trick-does-not-affect-AI/m-p/8771961#M27996
But as that one was talking about both Mind Tricks, and they have different issues, I think it's good to have a report solely focused on Obi's Restrictive Mind Trick.
Well, to begin, Obi's RMT isn't supposed to disable dodges anymore (rolls and dashes). That was changed in December 2019:
You can find the full notes of that patch here: https://battlefront-forums.ea.com/discussion/150099/community-transmission-the-rise-of-skywalker-update-release-notes/p1
But I understand your confusion, because ingame tips still say Obi's RMT disables dodges.
And about not affecting AI ability usage, you're 100% correct. Obi's RMT doesn't work on Co-Op/IA AI at all. It does affect them, as can be seen by the MIND CONTROLLED label that appears above their heads, but doesn't restrict abilities at all:
I also recorded a longer video showcasing this issue:
