I think we're all being a little too hard on Disney for this. When they made the call for the parks to be closed indefinitely, and under the table stopped taking reservations prior to June 1 (remember, that was never announced publicly - it was just found via TA and people like us), June 1st seemed reasonable.
I originally rescheduled my Easter trip for MDW. It wasn't until mid-April that I realized that MDW is most likely off the table. June 1st sounded reasonable at the end of March. It was weeks from then, the virus must fizzle out by then! But this isn't something that can be predicted or expected. We can project what's going to happen with this virus. We can only ride it's wave.