Never noticed it. It's all relative. To me, the song feels like, I don't know, 8 minutes? (also, you are not contractually obligated to listen to it, or anything).

I think the two vertical positions, is where this composition works the best, with the one you pointed out being the better one, frankly 😄.
The title means Rapid Eye Movement, a phase of sleep where you see dreams (and, possibly, participating in metaphysical activity).

I suppose, you can flip it on the side aswell (one of the sides, at least).