Greetings
Rule zeroing: oh sure, you can fix anything with rule zero. But when a book is mostly about rules and stat and you have to rule zero a lot of them... the book has issues.
The always 20 is just wrong! Now, if it was something like "gods always roll the d20 twice and take the best result" or something, that I could handle. Auto 20 removes all ramdomness.
As for D&D being silly in general... well sure, you don't have to play. I'll admit that D&D has a certain element of silliness and powergaming, but even within that context, the anhiliating strike is absurd. I was looking it up some more, and Moradin has it too. Wich means that moradin can destroy nerul, pelor, grumsh... in one hit (since he has a higher rank... Moradin and Coreleon have the highest ranks of the D&D pantheon, what is up with that?). One almost has to wonder why he hasn't crushed grumsh...
Ancalagon