Unimuts - From a total outsider's perspective it appears to me that the reason BALPA only seem to be effective or involved in BA is that it is only there that they can deliver on the threat of strike. A badly supported strike or one involving other than the majority of one particular group is a busted flush.
In this case the union has no direct role to play as far as I can see, they do not represent the CTC guys and those they do represent are not yet adversely effected. Although anyone with a brain cell can see that this will lead to degradation of T&Cs it is impossible to prove therefore there are no grounds to ballot on strike. I wish it were otherwise.