You hit the crux right there yourself. This was an internal ALPA process, and certainly not up to the "interstate commerce" standard anyway. That makes it a private arbitration outside the FAA.
Besides, smarter people than we will decide this whole thing in venues far more credible than this forum. You will NEVER see my point, nor I yours. If USAPA is willing to spend my dues money to defend MY point, then I am happy that I agree with them. If you want to, send some (or more) money to AOL to back up yours.
I really don;t care one whit WHAT you think, or HOW you think this will play out. My money is literally on USAPA, and there are enough real, experienced, licensed legal minds (and not just the ones USAPA is paying) out there that agree with that position.
You and I? We are simply blowing smoke. If you happen to be a licensed attorney, why not get yourself involved and do some pro bone for AOL. If you're not, put your money where your mouth is.