It is completely understandable that the east is upset.
The problem is who they are upset with, and their unfortunate behavior as a result of their misguided anger.
The Nicolau award did not devastate their careers as they claim. Your friend was not harmed by the Nic, s/he was harmed by the preceding years of bankruptcies and mismanagement, September 11, 2001, and a whole host of other unfortunate events that had befallen USAirways and our industry in general. The Nic is simply the result of those events quantified into a non-escapable reality of which the east is in denial.
Prior to the merger, they could hold out hope that somehow their airline would rebound and return to former status. But that was not in the cards. After the merger, they could individually hope for a DOH integration, that would propel them above 1500+ other pilots, and they could regain their 1986 career expectation. Well, it was not 1986, it was 2007, and any reasonable, unbiased individual who looked at the situation ( The new company, ALPA, the mediator and the arbitrator) tried to explain to them that what they sought was unobtainable, and that they were really not in a position to be asking for it, much less demanding it.
The bottom line is Nic affirmed it is not all about the east '86 hire, or the furloughed MDA pilot, or the east recalls that cannot hold group II. It was about merging two groups, with two sets of expectations, positions and status (i.e. Seniority). The seniority was merged in an equitable manner and it should have been time to move on.
So your friend has plenty of reasons to be upset, but s/he has no excuse for being angry with Nicolau or the West pilot group.