If the article is to be believed, I hope his union are 100% behind him and fund his action. Fortunately, it looks like there are deep pockets behind the other party so he shouldn't go away empty handed when he wins.
The Bloomberg article also highlights the potential perils of self selecting, self sponsoring zero to hero courses which include line training on the back of the course. The cheap airlines who benefit from this arrangement are, if they were people, the sort who would turn up at a party (un-invited) and not take any booze. They are also the people who should be named and shamed. Make them spend the money they save on not paying for training on marketing the idea that its OK not to pay their employee and legal fees for when it goes pear shaped.
Best of luck,
PM