Really? How many years do you think a court will allow USAPA to continue to extort dues/agency fees from west pilots while choosing to advance the interests of the east exclusively?
If USAPA was "Supremely Confident" that Nic would be rejected, they would follow the mandate of the arbitration and their responsibility as a union and Present and Defend such a T/A for pilot ratification. When it fails then they can justify pursuing DOH ( although not legally, since Nic is still binding) or any other solution that would result in a passable T/A.
No, the Fecal Jenga that is USAPA is about to collapse, either from internal or external forces. How it happens is much less important than the fact that it does.