We (all) tend to be a pretty apathetic group anyway though, don't we? I mean try and find 3500 ALPA supporters at an airline to "rally" for anything. How many ALPA supporters even show up for meetings? (And that's with a 70+ year head start and tons of resources).
If the DPA is to be effective, they need to somehow awaken the sleeping giant that is all of us. The same can be said for ALPA though.