The Air Force couldn't pick something based on the MH-60M because according to Sikorsky they are just UH-60Ms. Like all of the Army MH's (sans the MH-60K), the MH-60M is a concoction courtesy of the boys at at Ft. Campbell and Bluegrass Army Depot. With the "unique" flight characteristics of the MH-M, I wouldn't recommend anyone flying them except people with the training that Army SOF crews are afforded.
I think it is a good thing they stuck with a medium helicopter, never could fathom a 47 being required to pluck a stranded fighter jock out of the boonies.
Mike