It's one thing to release the details of which flights have been subcontracted to which company - there is nothing wrong with that and it highlights the extent of the dispute by showing how many flights are affected, but it's quite another to attack the specific pilots of those flights who have no control over their roster and could be sacked for refusing to fly and would not have union support for doing so as they would have acted illegally. So, I find it hard to believe that the NPU would advocate an attack on other pilots put in an uncomfortable position - most of those wet lease pilots will have sympathy with the NAS pilots and NPU, so attacking them would not only be utterly despicable but ultimately counter productive - what unions would co-operate with NPU if the NPU went out of their way to compromise the other unions' members?
I hope you have misunderstood the NPU statements and intentions.