I know it's been asked for before and there's a multi page thread full of bumps in the suggestions forum.
However, since we're talking about balance. Some professions need to keep AI Tech 3 perked while others don't.
My Keeper, needs perma AI Tech 3. My NT does not.
Anyone who's AI 30 shouldn't need to use AI Tech 1/2/3. They have all the AXP they can ever get. The expertise should be there.
Either make all the ATE perks green and greyed out at AI30 (so people don't suddenly get 3 extra AI perks to put somewhere else, like Solitus could have Tacky Hack and Survival as well as 2 other AI lines maxed), or have an "or Defender Rank Vindicator" or whatever on things that currently require ATE 1 2 or 3.