It seems like a blockchain-based technology that only works when backed by the threat of lawsuits combines the worst aspects of the art market and the cryptocurrency market.
Physical art, which people have historically paid for, is much more difficult to credibly reproduce than NFTs.
Edited to add:
Moreover if the argument in favor of NFTs is that they're not worse than what preceded them, then what's the point of introducing them? If the same problems in the traditional art market (especially for digital works) are recapitulated with NFTs, I don't see the point.
For most of these famous digital art NFTs, the digital work itself is widely distributed online. But of course there’s only one of each NFT.