Maybe that depends on the company you keep? I see plenty of people talking about the norms as if they're arbitrary or the exceptions are common.
Any deviation from a clear recognition of how things are--and we know how things are quite well at this point--is not following the science.
Characterizing two by two as a myth is kind of like characterizing Earth-is-a-sphere is a myth. It's not quite spherical, true, and you do want to stress that if people are making a big deal about its perfect sphericality. But it sure is close to spherical.