Ah, clipped to the front, now that makes more sense. Kinda. I'm guessing it was hooked to the front of the 2" webbing that the ring goes thru on the back, so he did have some kind of quick release if he had needed it.
I don't know enough to 2nd guess your location question. Where you got her out was pretty close, from her to shore, could have been the best. And props on the up and downstream safety. My only thoughts to chew on would be on whether throwing her a rope, or rope with a horseshoe, may have been just as effective with less risk; whether a pole would have accomplished that; and whether your team might explore other tools like boogie boards. Again, nice job in the big picture, and thanks for turning this back toward a productive discussion for us all to learn from!

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