I am not sure they understand it. If they did, they would have realized that something like Pkarr + any normal HTTPS server satisfies the vast majority of the web usecases.

The only reason to sign data beyond that, is if you are publishing something worthy of gossip, like Torrent or Git repo.

You don't need a witness when there is only two parties involved, the client and the authority.

But instead people take about signing data in a very religious way. Users don't need to sign every damn thing, especially when the price of that is losing your identity every time you lose a signing key.