Much Ado............
What you say is sensible. However, there's absolutely nothing that's been 'aired' on this thread that the company wouldn't have been well and truly aware of since July 12th when the TWU put its proposal for negotiations to commence for a collective agreement with the pilots.
July 12th would have been the technical notification date of the 'bargaining period'. As such, it was the point where (basically) the gloves came off. Sure, workers are theoretically protected from intimidation and harrassment by a company in cases like this. But workers aren't protected from all the dirty tactics and bastardry that management will adopt to try to stop workers taking action.
And those dirty tactics and bastardry would have been devised by the company well before July 12th.