Useful for who? It is often useful for large companies with powerful legal teams who will try to exert control over domain name registrars as they see fit.[1]
The nice thing with the blockchain is that you have the choice. If you want your asset to be recoverable through the legal system and courtroom decisions, it can be put into a centralized custodian. If you want to maintain complete ownership of that asset even though you risk not being able to recover it if somebody steals it from you, you might like to hold it non-custodially.
It is very possible that laws end up being defined around ownership of blockchain assets to give them a stronger degree of legal and intellectual property.
[1] https://domainnamewire.com/2022/03/08/meta-platforms-and-nam...