That's a pretty good example of what I was referring to with becoming desensitized to the violence. Of course it's not real life but there's still that thing in your mind that says "that's not OK" which then makes the leap to it being OK. Perhaps with repetition even expecting it or enjoying it or just figuring it's no big deal.
You're a rational adult, you can play that and keep it in perspective just fine. Some more unstable people maybe not so much. And not good conditioning for younger, less developed, more impressionable minds.