If it goes BA's way, then it could seriously damage collective action in the UK, even more so than this current dispute has.
Sorry but if you truly believe this then I want some of whatever you're smoking. It won't get anywhere near a Court, or at least not one that's going to set a precedent. BA can settle the problem within months, ie as soon as large numbers of the awkward squad who rely on staff travel have left.
I think you should be more worried about how many individual contracts BA now has saying "we'd like to accept the deal". It it's a lot, and with the prospect of upto 1,300 awkward squad members resigning soon, then there's not a lot to stop BA calling a derecognition ballot is there? Do you think one reason BA sent the same package of documents to every member of staff, even those it knew were in the Union, was to gather precisely this information, ie to ascertain the possibility of winning such a ballot? How do you interpret Walsh and Broughton's comments at the AGM about being "sick and tired" of BASSA?