You know, having read Sonic Retro's post on the leaks and thinking about all the comments on this game, one single sentence can be applied to this situation:
Sega is always wrong no matter what they do about Sonic.
They are wrong because they shouldn't do this, they are wrong because they shouldn't do that, they shouldn't include anything that someone, somewhere on the web might not like at all.
Put yourselves in the shoes of a developer and tell me if you didn't find it a little infuriating that after giving a new 2D games that there is still something wrong because they did something that someone might not like?
Here's the reality folks, you can't possibly please everyone.
I'm not pleased with Sonic 4, but I am certain that others fans might like them and I don't think any less of them for that. I don't think any less of people who bought Sonic Rush, even though I never liked it.
I, on the other hand, have been frowned upon for liking certain Sonic games, Sonic storylines, as bad as they are, and I'm a Sonic verteran, but it appears that sometimes in the Sonic fanbase, respect is a one way street.
Back to Sega being wrong, it's not helping the Sonic franchise either, if you as a fan and a critic is the first to stiffle any creative input.
Look at Sonic & The Black Knight's early reactions, since it was a Storybook game, it could've sparked some healthy debate on the Legend of King Arthur and Excalibur and everything around it, but no, the first thing that pops up is that Sega is wrong because they shouldn't give Sonic a talking sword, as if there is some canonical Sonic Bible that says he shouldn't have a sword, or a car, or be a werewolf. If that's the case, then you are screwed, because Sonic is what Sega wants him to be and as their IP they are entitled to do what they see fit with it.