If they just wanted to stall until they announced LAX and got a stack of applications 3 stories high from west coast pilots, there was an easier way than drafting and signing an agreement and then throwing a tantrum and ripping it up.
That move cost them huge face in the eyes of everyone I’ve encountered since then, and while I don’t engage in any unauthorized labor actions it is clear from the numbers (plummeting on time performance, manyfold increase in writeups) that a lot of people have had the wind knocked out of their sails.