The court case has nothing to do with the staff travel "issue" - it is simply an appeal to the judgement earlier this year that the changes imposed by BA last November were non-contractual. I doubt that UNITE will win - the whole argument is that cabin crew are now:
Originally Posted by UNITE LAWYER
"suffering a material prejudicial impact on their working conditions" which had forced them to work harder and become more stressed, so "there was no reason for the Learned Judge to be unwilling to grant an injunction".
There are so many holes in this argument, all discussed here before...
By the way, Lufthansa must pay tax to the German Government on all award tickets issued to German residents, as the travel is viewed as a benefit in kind from employment related travel.