Customers paid for something that's not finished, with the expectation that it will be... and that the people doing the work do a better job of disseminating information.

Where in that is it said that they can't have an opinion or expectations? In a forum to promote the same?

That's not entitlement. That's being a customer. An early access game is sold, largely, predicated on the promise of future development.

Take your "gAmErs ARe EntiTLEd BabiEs" argument and go.