All the damage control couldn't change the fact that where there's smoke, there's fire.
The Broncos were a flawed and fractured team, and the fact that a report about moving on from him came out right before the biggest game of your season obviously proved that there was dissension in the ranks. John Fox wasn't the greatest coach, often he seemed overwhelmed at some basic things like properly preparing your team for the biggest game of all, however, after a 12-4 season Fox deserved better than this.
These machinations probably lead credence to the thought that Gase could be the man in charge in short order. Either way, I wish Fox all the best in his future endeavors.