To be fair it's the same explanation on why players can take multiple hits from bullets. You were a ability enhancing suit. And those in the tuxedo are just so suave that they can do this just 'cause/ --- Call me Silly_Tunic!!! http://leakybattery.wordpress.com/ (mah videogame blog)
I didn't mind the jump height really. Seems fitting for it to be high in a sci-fi fps :o --- Scientists investigate that which already is; Engineers create that which has never been -Albert Einstein Wanting: Golden Sun DD, Conduit 2, Starcraft 2, Civ V
Uh, first off the view is making it look like he is higher than he is.
Secondly his legs being tucked up also make it seem he is higher than he is.
His actual height isn't all that exaggerated. I personally can jump and completely clear an 4' obstacle.
Considering its a game, he should be able to clear at least 6', especially since jumping over somebody is sometimes required just for mobility reasons. and he really doesn't look like he's that much higher than that.