I only use them in Alliance Raids when raising someone who isn't in my alliance. Even then, it is very simple: "Raising <t> {Take Care}. If I ever decide to get serious with SMN and RDM, I might consider using them in 8-man.

I've never been barked at for using it, nor have I had many issues with players stepping on each other's toes with raises. In truth, I am usually the quickest on the draw with it, but I always look for the raise icon next to a downed player before swiftcasting myself. If the other healer is close to me, just hearing the audible for swiftcast will have me hold mine back as their intention is usually to raise a downed player.