Yeah, I tried switching it to 87 one time to see if anything would change, and I also noticed the weird switch-ins, as well as VERY weird switch-outs(the AI tried switching to their Xerneas when my Mega Steelix was at +6 Attack and Defense and going to use Gyro Ball). Needless to say, I changed it back to 7 and am keeping it there. Seems to be the best option for the team I gave the trainer.
Also, would it be possible to make the VGC Finals theme play during a trainer battle if one wanted to do such a thing?