I'm not suggesting that, anyone take anything from her. But if, indeed, that is the case (personally, I doubt it, I think you're projecting your own problems onto whatever Cats got going in her life), it looks like it's limiting her ability to perform to a level that's going to make it a sustainable career choice for her. So her options are either get through it, with therapy or whatever, or continue to choke like we saw at worlds. PDGA certainly isn't going to tell people they can't spectate or Jomez can't film, or that it's ok for her to play on a card by herself because she can't handle the level of interpersonal communication that's requisite of a top pro.
Aren't you projecting yourself to suggest that she wants or needs any of those things (no spectators, no cameras, no cardmates, etc)? Bottom line is no one in this thread has the tiniest clue as to why Cat does what she does. If she prefers to keep herself to herself while competing, who is she harming?