This does feel like my opinion on NFTs / Cryptocoins.
The chain will drift from reality, in an uncorrectable way, reducing its usefulness over time.
This is the ultimate example of where you want a centralised database run by the state. Preferably properly "cadastral", so you can drop a coordinate pin anywhere and look up the owner.
If a Blockchain contract needs to be ratified by an external entity, is the Blockchain really worth it over a database owned by that external entity?