To be fair, Star Wars is Star Wars. Frozen's first version of Sing-Along was pretty bare and meh and still pulled in crowds.
The thing that sticks out is the delay. They happen, sure. In the past, when something like this occurs, the PR speak is "It's delayed because we want it perfect blah blah, and will be opening later this (insert season here)." This was "Hey, we'll update you in May when we get more info ourselves". What makes it more odd is that the opening date was just announced a month ago and not to long after, insiders were saying "uh oh!". Just a strange series of events that make me go "Hmmm....".