Official 
post (which disavows Roger Craig Smith)
Seriously why. Sonic and the Black Knight was the last one and it was also the last time you could beat the final boss to a kickaas buttrock theme song. Why don't we have this anymore?
Nowadays there's an entire subsection of the fanbase committed to the defense of Sonic 2006 and insisting that the media was unfair to it, which I mean I do understand the fondness for it. I'd play it over Colours, Forces or honestly even Generations most times.