You may have misunderstood him a little. Not all SF Operators have a medical specialty. Team members have specific tasks and are highly trained in their specialty. The team medics receive some of the most advanced trauma care training in the world, and yes, there are goats involved. But the other team members, are not so skilled in medical tasks.
When I was first assigned to H Co. 2/2 ACR in Bamberg in '86, I was told by some of the “old hands” that at one time, we wore black berets with the Cav flash and the regimental pin on it, a yellow aiguilette, tanker boots (real ones, not those crappy Corcoran tanker/jump boot hybrids!), and that our BDU’s said “U. S. Cavalry” instead of “U.S. Army.”
That was typical garrison wear, of course, not field uniform.
From what I hear, the black beret isn’t all that popular among regular troops, especially in warmer climes.