[mirimir]

No, by "hosting" they mean shared hosting, with multiple .onion sites on one physical server.

Each of those .onion sites would have its own Tor entry guard relays, and would negotiate its own rendezvous points. An .onion service, just like a Tor user, selects a few entry guards that it uses consistently. And gradually replaces with new ones, over some weeks. But rendezvous points get picked fresh for each client-server connection.