To settle the "hooking the leg" question, both sides are kind of right. The leg hook, as seen in professional wrestling, isn't an effective way to pin someone, as it leaves room behind the head and over the shoulder. You wouldn't kick out of that, you'd use your opposite leg on the ground to pivot your body, or roll back over the far shoulder depending on positioning.
However, "hooking the leg" descends from the catch wrestling technique of the cradle, which is much like hooking the leg, only that the non-hooking arm reaches behind the head and clasps the hooking hand, followed by squeezing and rolling your opponent onto their shoulder. Properly applied, a cradle is a real motherfucker to break, as the major muscles in the thigh- overall much stronger than the biceps applying the cradle- are isolated in a position where they aren't able to generate more strength.
There's not much showmanship in a cradle, however; it's either a quick pin, or two guys on a mat struggling for position which is imperceptible to the audience. Since this is a television show and not a sport, we get "hooking the leg".
