I do think NTTs are a major necessity. The list of applications is endless. A new one: mint a specific NTT to all the Genesis accounts. Any account holding the token can now be identified as genesis by smart contracts. Or mint a warning token to known hacker/scammer accounts.
Does the spec include a “mintTo” type function?
Also, could my idea of “NFT Entanglement” be woven into this EIP? (NTT whose ownership is atomically linked to some other transferrable token.)