I agree but would add on #5–Hook says GOAT saved him. He had the cuff modified to take her magic already before she betrayed him. So it could be another tool, or they came down and tasered Mal–or maybe it was that once the cuff started working on Regina, her magic faded away. Perhaps it was not an instant shut down–so her “sustaining” spell on Mal just wore off once the cuff kicked in, and that’s what he meant by GOAT saving him.
“If I had a world of my own, everything would be nonsense. Nothing would be what it is, because everything would be what it isn't. And contrary wise, what is, it wouldn't be. And what it wouldn't be, it would. You see?” -- Lewis Carroll, Alice's Adventures in Wonderland & Through the Looking-Glass