you can already see that with nostr.

the many relays and more is better. they are technically supppsed to be interchangeable anyway.... that is the goal in p2p. that is what bittorrent brought to the mainstream.

No need to trust a specific server or cloud to whatever levels it is centralized/federated.

no hierarchy needed.
The issue is to believe or promote top level global names in the first place.

public keys are all we need and that needs no icann