No? I mean if there were dozens of studies that when analyzed showed a trend that people who listen to classical and jazz are "more intelligent" than people who listen to trance or dubstep, it would be valid to then wonder why that correlation exists. That's what's done here. Maybe their conclusions are wrong, maybe they're right, but it's not a meaningless position to take in the first place...
Quick note on those: those studies appear to be small sample driven and must therefore be considered 'moot' as far as their claims go.
Video on that by the 'Today I Found Out' people:
https://www.youtube.com/watch?v=QAJ2XKqKSRw
or the same thing in text:
http://www.todayifoundout.com/index.php/2010/10/listening-to-mozart-wont-make-you-smarter/
Which is a total
bitch because I FEEL smarter when listening to Bach, Mozart, and others, man. I'm totally being treated most unfair by this science. Tremendously unfair. /s
Also, on the topic of "but person X is totally religious", while others have already mentioned that being registered as one doesn't mean a person is (remember, being non-religious is still punishable by death or being made into a pariah in much of the world today), you should also be aware that no religious person is religious all the time, nor is a scientific person (unless you're 100% secular, which I don't believe is doable, but I would like to be) scientific all the time.
The name worth knowing in this context is the granddaddy of anthropology Bronislaw Malinowski as specifically a selection of his work printed as "Magic, Science, And Religion". His observations and subsequent theory is that tribesmen do not require magic or religion when fishing in a clear stream of water, since they can observe and know all processes involved, but turn to magic and even religion when they have to fish on open seas, because they can't see the fish or know what's going to happen or why and how.
Basically, a famous science person who was also religious, like Isaac Newton, put on their science hat when doing science and math, and put on their religion hat when doing religion, but never both at the same time. It's kind of what Stephen J. Gould meant when he wrote about his 'non-overlapping magistrata' but by then scientific knowledge had advanced to a point where the religious hat and its axioms directly conflict with and deny thing we already knew not to be the case. By now, no such combination is viable as a way to do science with the mindset that it needs, but it is still viable in engineering due to the much more limited focus of whatever field it's done in. Seriously, if you're looking for Intelligent Design people, go talk to engineers. Sorry if that's a bummer for you, but that's what that is.
Additionally, for anyone who has gotten a sudden interest in religious and non-religious cosmologies and what defines and separates them, there is a college lecture series from the University of California by Courtenay Raia that might interest you.
Direct to the playlist for all 20 lectures (yeah, that's 20 hours of lecture for you):
https://www.youtube.com/watch?v=K3Zx-qcNZf4&list=PLFFD1C791A86FB485
I admit I live for this shit, so that amount of time doesn't bother me, but hey I tried.