This situation is messy lol. Would it be accurate to say that:
USH tried to open SNW before ToonTown, so it's opening rushed to the point of being borderline unfinished
Disney wants to open ToonTown before SNW, so it's opening MMRR without ToonTown being open, and presumably forcing them to race to the finish-line with the ride
Now: Nintendo is mad, WDI probably annoyed that they have to open a part of ToonTown without the land being done
From an outside perspective this is what it looks like but I could be way off the mark here