Guys, I'm seeing a pretty strange contradiction here... Boy, is this world weird!
Yeah, disagreements happen. Either the thought of such display is too impressing to ignore, or its drawbacks haven't been explained well enough. I'm still under the impression that those who want "finishing moves" or "quick assassinations" don't comprehend the implications. It's a valid idea, but would not mesh well with the playing style of Brink.
It sounds more like some feature to give the game buzz. Every game has some "action" that everyone wants to show their friends for the first and last time. I say just let them make a new light character and try some parkour. If it isn't that then stop buying games to merely breeze through them and move on. Actually stick with a game and features such as this do grow tiring.
They are not brutal enough...
We need More Blood and Violence!
I recommend you play Left 4 Dead 2. It enjoyably has those things, especially when using melee weapons.