The implementation is under 750 lines of trivial C code, much less than for instance an embedded Lua interpreter (which just barely existed back then). I would

The implementation is under 750 lines of trivial C code, much less than for instance an embedded Lua interpreter (which just barely existed back then). I would call that the opposite of "overengineering". Also, this wasn't used for the entire game, only for the parts that are moddable.