Why do you think FSU would go after unequal revenue? The reason for unequal revenue is to bring teams closer to what the top paying conferences are making. They would be in one of the top paying conferences so no need to push for unequal revenue sharing.
As far as making the playoffs, why would it matter if FSU is in the Big10 or not to the lower half? Hint, it doesn’t. If FSU can bring more money and more visibility to their school, the presidents of schools like Indiana, Rutgers, Minnesota, Northwestern and Purdue will be thrilled. Throw in the fact that would be playing in front of a whole new state with tremendous recruits, the coaches will be all for it.