Why pick on the Union Barrister? If anything BA has been in court on many more times than the few occasions with BASSA - it's BA's legal team who are full of glee
But BA generally win. It's the BASSA QC who keeps picking up fees for failed challenges, each time pushing on to the next court layer.
The rules under which they operate say that a barrister must take on a case they're offered if it's within their area of expertise and they're not otherwise engaged.