It tells us the basic history, motivations, setting, possible characters, and general feeling of the game. And if you really wanna pull that "generic" card, I advise you to look at Unreal Tournament. It's a gladiatorial tournament... In SPACE! Or Fable. (original Xbox game) You are a farmboy who finds his destiny as the CHOSEN ONE. NEVER seen that before. Or Payday. Rob banks and stuff! That's it. That's the whole premise. So yeah, I'm sorry but I find it a little laughable that people would be taking the piss out of this game because it looks generic. After all, execution is everything. And for the record, compared to all those other games I mentioned, this game looks pretty darn original.
Now, to be fair, it's not like we have a lot else to go on but at least wait just a little bit for some gameplay to come out before you guys crap all over something. I've read a bunch of Cliff's blog posts and I know he's pretty freaking intelligent. He knows what he's talking about. He knows what he's doing.