NFTs are not stupid (far from it). NFTs, including their associated data, can be entirely stored onchain, and some are (OnChainMonkey, for instance). Many NFTs have their data stored on IPFS (quite different solution from DigitalOcean/AWS...).

No particular opinion on OP's idea but why not. Anything that can bring together the 2 worlds, NFT and Bitcoin/LN, is going in the good direction imho.