Sonic Games are met with unfair bias

[RoaR]

HOLiDAY_AETERNUS said:

 1998/1999: Sonic Adventure 1 is released as a launch title on the SEGA DREAMCAST and is met with great financial and critical success, soon becoming the console's best selling game.

 2001: Sonic Adventure 2 is released. Is a critical success as was its predecessor.

And here's your problem. Now, Sonic Adventure games weren't exactly a critical success, actually, but they did get favorable reviews... despite the fact that they were crap. They sold because they were Sonic games, and then people realized how they are nothing like they expected and, in fact, no fun at all. Good reviews only made us not trust reviewers anymore, and when reviewers realized this, they stopped giving the following games overblown scores.
Bias? Maybe. Unfair? Not really. If Sega wants clean slate, they should start a new franchise.