Ah yeah, that sounds like it would be annoying...
I've never used mobile to check out paranatural before but after reading your post I tried it out. After zooming in I'd have to move to the edge of the page and swipe pretty significantly to go to the previous page though. Maybe how easily it flips depends on ones mobile's sensitivity?
I don't really use mobile often enough for internetting to have an opinion on how (un)necessary the change was though...