The way Timur Bembaktov pulled it off visually just didn't do it for me, I guess. It's almost like The Fraternity has an unfair advantage, and having their ability makes them less human, so that kind of thing is almost expected from them. In stuff like Shoot 'Em Up and Riki-Oh, they didn't have any kind of special ability, they were just really good at what they did, which made their antics more over-the-top.
This is just my personal opinion, I'm not gonna argue over what is over-the-top and what isn't. For Wanted, the only part(s) I thought were over-the-top were the sniper shots.