It was a waste of time and resources for a particular application, yes. But the basic technology is useful for many applications.
Those "bored ape" NFTs were for jpeg images, do you also think that the jpeg algorithm was a colossal waste of time and resources?
I am describing a usage that is explicitly not like that. A usage that has nothing to do with art. The concept of "NFT" is not somehow inextricably tied to spending ridiculous amounts of money on pictures of apes, it's a general technology.
This is a perfect illustration of the problem here. People are lamenting about difficult it is to come up with a truly decentralized method of owning domain names that can't be commandeered by authorities or big business, a system to do exactly that already exists, but it's based on a technology that people have such an extreme prejudice about that they'd rather downvote anyone who tries to explain it and go back to helplessly lamenting.