I don't' see any vindication. I think that Sutter was wrong about certain individuals on the team, but I don't think he was wrong about the type of game they were trying to play, nor do I think that is why he got fired. He got fired because he turned into someone who no org would employ. If you are looking for Sutter to be vindicated I think you missed the original issues.
Not to mention the success of firing a coach in order to improve as a team rests far more on who you hire, more so than who you fire.