The problem is that Sega wanted a Sonic Boom Brand, and they rushed out another game, completely forgetting what happened in 06. Everything but the games have a level of care to them. They were trying too hard to do what Pac-Man did, and even then his game is somehow considered lousy as well, and the cartoon and toy line not quite as successful.
Maybe if they hadn't done a total immersion launch and let the cartoon premier first with the games to follow they would've had a lot more time to make something better. Good to see they're actually releasing a patch and trying to salvage it, but I think overall the cartoon is the highpoint here (maybe the comics, haven't read any of them). At the very least, Sonic finally has a current series that's not X. And I do like X, but it's been in reruns since its debut. X flopped in Japan, but was a modest hit here.