Okay, I admit total ignorance really over what's being discussed here, but I figure that what I'm about to say is valid anyhow.
If it's a good idea, I don't think that it really matters so much who came up with it first, Surefire is a company which prides itself on having among (if not the) highest quality priducts out there, and I can see quite clearly that if someone else had come up with something which they felt would enhance their product range, that it should be implemented, no doubt having been approved by whoever invented it firsthand.