What about Casino Royale was going back to its roots? Did you watch any Connery movies? Did any of them drag on far too long and have more endings than Return of the King? Did any of them have useless villains, no resolution, and a Bond so idiotic that he can't tell when Vesper is setting him up?
How about five poker hands that were EXACTLY THE SAME SCENE? Were those there? No, this movie didn't go back to its roots, unless its roots were XXX. Success it may be, but that doesn't mean **** for the film's actual quality. Bond can be edgy and still not suck - Goldeneye proved that. It can also be edgy and suck HARD, as was proved by The World is Not Enough and Casino Royale.