Depends on how deep you want the belief to be, but a lot of people will hold weird beliefs. I've seen colleagues express so much pride, joy and pleasure for things that I consider bogus at best (and totally detrimental if I'm being harsh), so I wouldn't be surprised people who live in UX land to be in that kind of bubble. The worst part to me .. is the blend of cutesy-butterfly projects with "scientific study" practices. So now they have stats on how their emotion framework is the best for the future.
As a UX designer, I assure you there are still some of us that are cynical about all this BS.
In my experience, the one thing that people care about feeling when using some GUI is that they are on the right track and are closer to accomplishing whatever task they are performing.
I’ll say this though, the UX designers who speak in flowery bullshit like that tend to get noticed more and climb the career ladder, because it’s what everyone wants to hear. It’s this kind of stuff that made disillusioned me and made me hate the work.
I think some really do believe it, and I think others will just say whatever they think someone wants to hear.
I heard recently from a professional Marketer/Behavioral Psychologist is one of the things he learned that was a gut punch was the things one holds most dear are generally commodities to almost everyone else.