Bullshit-sensitivity and cynicism are practically synomyms I'd say. It feels counter-intuitive to find cynicism positively correlated with prosocial behaviour (which the article defines as donating to and/or joining a charity.)
I think you can be extremely apt at detecting bullshit without being a cynic. In fact I think a lot, though certainly not all, of cynicism stems from the disappointment of having been fooled too much by bullshit.
OOP (as the solution to every programming problem), Java everywhere (performance is great and/or doesn't matter - really!!), P2P everything (because Napster), semantic web, XML, SOAP, agile(washing), cloud (whether it makes sense or not), server-side JS (overused), client-side JS whether you need it or not, IoT (aka please pay us monthly), blockchain. You see a lot of bullshit in a career.