I really hope that isn't the outcome - the stress SP has been under could ruin people for life and to be faced with not really being able to return to work and having no financial recompense would be unbearable.
However, that aside, I don't think an adverse outcome would be such a bad thing legally. You can then appeal and become binding a la Forstater. The media interest and discussion and therefore sunlight and peaking and increased outrage at the result would be like a tidal wave that would wipe out the idea that "the majority" accept men who say they're women in women's spaces/sports/healthcare/prisons etc.
I always think, when schooled on how much of an outlier I am for not seeing men as women just because they say there are, that the only reason that TRAs can convince themselves that is because not enough people have been asked.
More discussion, more media coverage and more outrage wouldn't be a bad thing.
I can't see that she will lose though.