I've included it specifically because of this ancient ass reddit post https://www.reddit.com/r/totalwar/comments/xk3g1k/wh3_if_your_campaign_is_crashing_during_the_ais/

This is the only fix I have ever found that actually works for when CA's spaghetti code causes vanilla factions to crash the game during the AI cycle at the end of turn. Deleting one faction sure beats losing a game with 400 of them. Since CA is clearly never going to fix this, it'll do.

You're welcome.