Well, I'm never certain of how the infrastructure of gaming server works.
But I think in general, just because you are closing them down doesn't mean there aren't still people working with the servers.
They do need to be maintained or whatever other tasks are necessary until they are permanently deactivated.
After all, someone would notice if the servers crashed and nobody rebooted them!
But I think it's best to just try to do it ourselves and not rely on Disney.
I am uncertain what other unlocks require multiplayer, but the one I must have is the Sugar Rush stands.
If that is achieved, then maybe I can do some others.