They are an embarrassment because greed is their motive, not redressing their "perceived" injustice. Just look at the reaction to one of the plaintiffs to him being offered a job with 777 FO equivalent pay, but not actually flying the 777...he feels it's beneath him to fly the EMJ.... wow, that says it all.
First of all, as Ray states they haven't said anything at all. Second, pilots who fly Air Canada aircraft all have seniority numbers and are members of the bargaining unit represented by ACPA. That means they have seniority rights just the same as you and I. If ACPA were permitted to do this to these two pilots (they can't thanks to a little thing called labour regulations) they could do it to you. How would you like to be restricted to EMJ FO at 320 pay simply because ACPA took a disliking to you?
As and individual it isn't surprising that you let your emotions get the better of your good judgement or reason, but ACPA isn't supposed to let that happen, and as I've stated countless times we will all pay a heavy price for it.