Creating an alternative or an extension to the DNS root is pretty ambitious. If they had chosen a TLD similar to .eth, .bit ... etc., it would have been more manageable, and they could've avoided issues with name collisions.
However, there are some advantages to decentralizing trust in the root since there won't be a need for a root KSK[0] or a central entity that manages the root zone making DNSSEC + DANE more appealing even for existing TLDs.
However, there are some advantages to decentralizing trust in the root since there won't be a need for a root KSK[0] or a central entity that manages the root zone making DNSSEC + DANE more appealing even for existing TLDs.
[0] https://www.cloudflare.com/dns/dnssec/root-signing-ceremony/