Zubatcarteira
Now you're infected by the Musical Doodle
I don't particularly care about that part, just saw people mentioning here it was the Valar, while I'm pretty sure it was Eru. It's a bit different from the Dragonlance example since there it seems like the good gods had to still take into account what the evil and neutral gods wanted, while in Tolkien Eru is just the omnipotent god of everything and could solve all the problems at any time.If you're going to criticise this aspect of JRRT's work, in my view it's just silly to comment on the downfall of Numenor. If you accept the political and theological worldview that informs the works - either in reality, or as a framing for a fiction - then there is no criticism to be made of the downfall. Conversely, if you don't accept that worldview, for instance because you reject it in real life and are not nevertheless prepared to accept it as a framing for a fiction, then the whole thing falls over and the downfall isn't any sort of special or distinct target of criticism.
The Valar did try killing Sauron as well, I think, threw lightning at him, but he wasn't harmed. Maybe Ulmo could have jumped out of the ocean and skewered him for a more direct try, but at least they tried something.