You know, it might be that the BOT said something along the lines of - "look, we're not going to open
our coffers for these sorts of salary races. But, given that we want BYU to be in the national conversation, you are free to gather investment from the community on this, so long as it is in keeping with our mission."
That sort of investment takes time, and it probably took time for the BOT to loosen up their thinking to even get to that point.
So, here we are - enjoy it.