I've dug around the TempleOS codebase a bit, and while it certainly is impressive for a single guy's work, I think there's been an overcorrection where people act like Terry was some hyper genius instead of "a pretty smart guy".

I kind of got the impression that whenever Terry didn't know how to do something, he would just convince himself that that's not what God wanted anyway and stop doing it.

It should have been HolyBasic. Mistyping a HolyC indirection in an editor causes the OS to crash.