Yeah--I think them signing the TA was a last-ditch effort to get that UAL flying. They didn't want it bad enough to pay us too much, though.
Funny (and sad) thing about the current state of things--Pinnacle probably saw the Skywest deal, and the many Republic deals for cash-for-flying and probably now realizes they probably have a better chance of getting new flying by lending the money that was going to be the bonus check versus signing a deal with us.
God Forbid Delta or Continental needs cash in the next few years--they'll just lend away our would-be raises and bonuses and get more flying, still with no TA. And please don't respond with "but the NMB will release us by then..."