Newsflash, guys. These terms we use to describe rock music, like "epic," are loosely defined. Some people consider Stairway to Heaven to be an epic, even though that song is SHORT by DT standards. So "In the Name of God" can be an epic-- if you want it to. Being an "epic," for me, only has so much to do with how long a song is.
For me, I judge whether a song is an epic or not based on whether it goes places. For me, Learning to Live will always be an epic, because the song takes you on a journey, even though it's shorter than a number of more recent DT songs which aren't epics. And isn't that what epic means, at least from a literary point of view? In the Name of God is an epic too, at least in my view. That song goes places. The Ministry of Lost Souls, unfortunately, is a slopic. A long, sloppy attempt at an epic.