I am not as concerned about FOX not being supportive now given ESPN’s support. FOX is only against the move until there is some outcome beneficial to them that gets driven out of it. As an example, when Texas and OU wanted to leave early to go to the SEC this year, FOX was against until they were able to negotiate Texas and Michigan flipping the home/away games on their home and home series this year so that FOX still got to broadcast a Texas game.
The discussions will continue and there are (legitimate) concerns that need to be smoothed over before we are added. The fact that the conversations will continue in an effort to ease those concerns and that both the hired third-party media company, commissioner, and (half) of the TV partners are supportive is a good thing.
Remember, Cal, Stanford and SMU additions took time too. Oregon and Washington originally didn‘t have support from FOX and the B1G. These things take time.