Yeah, I'd call that a bit of a stretch here. I mean, she's standing there with her arms crossed and is within the confines of the cell when he charges back in and proceeds to take her down before adding in a few parting shots for good measure. The whole thing strikes me as rather blatant.
Honestly, I'm not really a pacifism at all costs kind of guy. For example, I get why the officer who shot Nathan Gale at that Damage Plan concert acted as he did. I mean, it was regrettable, particularly considering that Gale was a paranoid schizophrenic, but considering he had already killed few people and was in the process of firing into a crowd, I'm willing to accept it as sad but appropriate. There's really no way I could bring myself to reasonably argue that the officer second guessing himself would have resulted in less deaths. So, yeah, there's probably all sorts of hypothetical scenarios and stories someone could come up with where I could be convinced that it's OK to manhandle or even shoot someone in a given scenario. But unfortunately for Deputy Asshole here, I don't see how that has much bearing on this particular situation.