It really wasn't a good movie. The graphic novels are good, but like other long, episodic stories, it just doesn't cram together well and the pacing is way off. Add to that the deadpan lack of acting by a bunch of otherwise decent talent and you get.... a severe disappointment. We don't know why Ramona's so attractive to Scott, because she never emotes or otherwise gives him a reason; likewise, Scott's just kind of there, pining for Ramona, and nothing else, for no other reason than she's an aloof counter-culture girl who dresses cool. There's just zero chemistry.
It was just a series of fights, and sort of came off as Mortal Kombat's G-rated little brother. That's a shame, because the graphic novels are more about Scott getting some self-respect and changing from slacker to functional adult.
As for what MovieBob was saying in the article, I don't think the movie was a game-changer, either. It made use of some narrative devices previously introduced by way of the graphic novel, but they're not a good replacement for solid writing, good acting, or decent pacing, which this movie didn't have.
Still not as bad as the Last Airbender, but the video game gimmicks and weird edit/scene changes don't save it, sorry.