Modding

I have the impression that the AI ignores the AIRacesValues lines in the Skills.xdb file. As I understand it, these lines are intended to prioritize which skills and perks the AI should choose and which it shouldn't. But again, we have a percentage chance for a particular skill to appear (and this, as I understand it, determines the AI's skill progression), and if we recall the MegaAI mod, then the programming of the necessary perks for the AI was done not by manipulating the AIRacesValues lines, but through Lua.
What are your thoughts? Maybe someone knows how this actually works.
P.S.: For now, I'm leaning towards the idea that the AI referenced AIRacesValues in earlier versions of the game, and now these lines are just a remnant (which often happens in ToE).