I generally don't care for the arguments of "an X creator must be Y, therefore Z". It's very similar to https://plato.stanford.edu/entries/divine-simplicity/, and always tries to sneak in an "ought" for an "is". From that link for example, "God is ontologically superior to every partite entity", what does "superior" mean? Why?

So not to pick on you specifically, but I'd need to see a well-reasoned argument about why a smarter creator would be "more powerful". In fact, flip it on its head. A dumber creator is "more powerful" because it must require more power than a smarter creator in order to do the same thing.