Serious question. Why do you believe there is a case to be made for throwing the flag on Fuller. My counter argument being a few things:
1. From the corner endzone view you can clearly see fuller start his route outside, plant his foot and break inside. To me this indicates he was running a route otherwise he would have gone directly into the block. If FSU had run the proper coverage, Darby would have covered the flat not jumped inside with Fuller. So by Fuller planting his foot and cutting his route back inside, which he did BEFORE Darby made the move to jump inside and cut him off, Fuller ran the risk of Darby not going with him, and instead stepping up in the flat. If his intent was to block, again he would not have started outside then changed direction, he would have gone right at Darby and not run the risk of Darby not following him back inside. FSU had run this coverage previously in the game, but in that instance, I don't believe Fuller was going to assume the same without even making himself an option on the pass if Darby doesn't jump back inside and instead covers the flat.
2. Darby jumps the route inside, and literally as soon as Fuller changes direction, Darby jumps the route to initiate the contact. I know your argument will be about how it is the offensive player's responsibility to avoid this contact, but there is literally no way for Fuller to avoid this contact as it occurred literally one step after he made his cut and Darby broke hard...if the ball had been thrown to fuller it surely would have been DEFENSIVE interference as Darby made contact with fuller and interrupted his route with contact that would not be considered incidental.
3. While Prosise does not, Fuller DOES get his head around.
4. As was mentioned in a previous posts, or maybe in another thread, there is no conceivable way for the official who threw the flag to have been able to identify where Corey Robinson was at the moment he made the decision to begin reaching in his pocked for the flag. The ball had barely come out yet, and Robinson was MAYBE a yard beyond the LOS at that point...while the official was back under the goalpost with a horrible angle, and looking through traffic.
I get how you feel about the play, the call, and fan reaction to the call, but there is more than enough reason/justification for people to feel how they do. I really want to understand your argument, particularly if you could explain what you saw as it relates to the views available from the goal line as well as the back corner view.