ExBACrew
I don't agree that tagging the PCCC spoof site with BA-linked keywords is not actionable by BA. The whole point of adding keywords is to lift the profile of a website on search engines. We all stick in words that we think those interested in our products/services will search on, and the idea is to get our website on the first page of a google search. So, sticking lots of BA-related words linked to the spoof PCCC site might result in it being high on the list of sites returned when searching on "BA" or similar. Being linked to pornographic or other offensive material may be deemed defamatory to BA and, as a reputable company with a long history, valuable brand and, hence, arguably a high goodwill value, then it is possible BA could win substantial damages if such links can be proved to be deliberate and malicious.
Incidentally, this is almost certainly why BASSA is not commenting. The Union will not, nor should not, apologise. It's a bit like when you crash your car. You should never apologise even if you know it is your fault, as to do so is an admission of liability. BASSA is right to make no such admission. If BA wishes to sue, that is up to them though, more likely, they will just keep this one in their collective corporate back pocket until the next time BASSA causes trouble.