It seems it didn't:

> Built on EA's GPL v3 source release via fbraz3/GeneralsX (which did the heavy lifting of the macOS/Linux port — this fork adds the iOS/iPadOS port and a set of engine fixes)

Fable added 19 commits on top of the parent fork, which did not use AI.

You can see the diff of what Fable added here: https://github.com/ammaarreshi/Generals-Mac-iOS-iPad/compare...