While "ENG" is not a great fit for the RED cameras, they are excellent for many EFP tasks. I would say that half or better of what I shoot falls into the realm of EFP. As noahvolek pointed out earlier in this thread, these cameras are amazing for photojournalistic work -- EPIC absolutely shines here. The EPIC is awesome for many documentary style tasks.
The 2/3" fixed Scarlet held a lot of promise as an ENG tool... Alas, it's no more.