I guess I just don't see how delaying a game that didn't have a release window to begin with could be considered a disappointing news. Especially if it is to release it alongside a next gen version of that game on PS5.
I can see it can be disappointing to people to hear they have to wait for more than a year to play it (maybe people hoping it would launch somewhere close behind LoUP2). I myself expect nothing less so wouldn't be a disapointment to me.