AI always prioritizes a human player
It doesnt take much to prove that statement... most of these matches are typically 1v1 or 2v2 humans with all other mechs filled out by AI - easy enough to prove that also by looking at the "recommended " players list under the friends tab.
Sit behind cover and step out... if there are clear lanes of fire every AI on the team will switch their focus onto you. It is overkill to have the AI programmed to Act like that.
So many players complain about Matchmaker and the devs response is "share the game and get your friends to come play". Maybe it would be easier to get our friends to stick around if the AI wasnt blasting them to smithereens with focused fire on the human player. Make them ( AI ) behave more like a human - I.e. tunnel visioned on the mech they are currently battleling against 😉