Yes, NFTs relying on (centralized) URL is obviously bad and doesn't fit well with cryptocurrencies in the first place, as the entire point is to build a decentralized financial system.
NFTs relying on content-addressing are all fine though (like IPFS) and most of the NFTs I've seen are using IPFS, although some of them screw up the linking and add a link to a IPFS gateway instead of just the hash.
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Yes, NFTs relying on (centralized) URL is obviously bad and doesn't fit well with cryptocurrencies in the first place, as the entire point is to build a decentralized financial system.
NFTs relying on content-addressing are all fine though (like IPFS) and most of the NFTs I've seen are using IPFS, although some of them screw up the linking and add a link to a IPFS gateway instead of just the hash.