Ever since Disney changed their content distribution model last August, the Studios at this point should almost expect their movies will end up on streaming. That's the way Disney has geared the model. Obviously I wouldn't be happy if I were them though, either.
Basically, the way Disney changed things is that all of their studios make content now and then it is decided where that content most appropriately fits whether it's Disney+, Hulu or Theatrical.
While they may be demoralized, Disney+ has over 100M subscribers and growing, meaning their movies will actually probably be seen by more people than ever before if you think about it like that.