Interesting.
So I always hate commenting on legal cases based on media reports, because I know from my own cases the media leaves out important issues. And of course, as always, I am licensed to practice law, but not in Arizona.
Just going to Contracts 101 though...
This goes exactly to what I was posting just the other day - "didn't Phoenix / Sky Harbour already agree to this"?
It is probably going to come down to the exact wording of any documents signed between Meruelo/Bluebird/Coyotes and Phoenix/Sky Harbour. As I have mentioned before agreements to agree are not valid. If it boils down to "we are not opposed at this time" then Phoenix is free to change its mind. But if Phonix signed an agreement saying "we promise not to object", and what's more, Meruelo/Bluebird/Coyotes paid some kind of consideration (such as by altering their proposal), then the Coyotes are in reasonably good standing.
The bigger wildcard though is the public vote. If the vote goes against the Coyotes it probably does not matter what a court rules 6-12 months down the road.