The best thing that can happen for both lUAL and lCAL pilots is for the SLI to be completed, no matter what the outcome. Both groups get to move forward in their careers, and their lives. Starting lawsuits and grievances now, is just shooting ourselves in the foot.
Life is not fair. I have friends that were born rich. Did I file a grievance with the mayor, the governor, the president, or Buddha because I should have been born the same? Of course not. I played the hand I was dealt. Anything else is complete, childish BS.