This idea that servers are easy to shutdown if they have static IP is soooo overrated... Signal and similar services have been using reverse proxies to play a cat and mouse game with ip black listing to great success for long time.
If your DNS layer is on Mainline, then you can basically play this game even better since the harder attack (at icann level) won't affect you either.
You are right, servers offering data integrity is OBVIOUSLY better.
Also, this is not either or... even if data integrity got in the way, just sign a single file and gossip it... what is the big deal?
Why are people rejecting structure and integrity and reliability is beyond me.