If you turn your head away you can do a rolling escape from those "pins".
I'd watch out with that. You will get away with it with a loose or poorly executed pin. However, a well executed pin you are liable to injury your shoulder trying to roll out of it.
I'd just like to say that rolling out of pins is my pet peeve. Mostly because that when I feel a person is gonna go for it, I just let go of them and allow them to roll. I'm not willing to risk injuring some one just to prove that my pin is awesome. lol