I don't disagree that this is an issue that USFS needs to (FINALLY) tackle. But I think everyone also needs to realize that it's not JUST USFS at work here - it's the press, it's the judges, it's the coaching staff, it's the TV commentators, it's the skaters themselves, and yes, it is the fans too. It's endemic in the US skating community. It's going to take a cultural shift in thinking to turn things around. Just take a look at this thread as an example
More directly within USFS' control is how they prepare skaters and structure the competitive system in the US. I'd argue that should be their priority number one.
Also, I don't think you can teach mental toughness. You either have it or you don't. The best you can do (besides physical fitness) is prepare for any scenario, in HOPES that the competition anxiety can be somewhat reduced. You hope that your skater has it, but if she doesn't...likely not much you can do as a coach.