I like the BP/W not because DIR divers use them, or because my instructor dives one, but because I have thought about what I want in a BC and I think that it's the best choice for pretty much all of the diving that I do. Sure, those things might influence me, just like any other information or experience might.
Agreeing with the paradigm does not automatically imply unquestioning acceptance of it.
The first is a conclusion reached by logic. The second is concluding that one must follow the rules.
R..