Umby
Smash Master
I don't think anyone was RELYING on MK to keep Sonic's harder matchups away (unless I missed something), but it's the argument that taking MK out of the picture wouldn't necessarily increase Sonic's chances at doing better in tournaments.
Besides the fact that we can't completely predict which characters will start seeing more use if MK was banned, there's still too many characters that give Sonic a hard time, and they'll all increase in use with MK gone: Marth (I swear, it can't be only me that thinks this), Wario, G&W, Olimar, and while he'll still suffer from usage in not being a higher tier'd character, I can see Luigi being an issue (because I still consider him a counter). Bias of Marth and Luigi aside, that still leaves D3 and Falco, who are already seeing high usage. There's arguably too many factors to determine exactly HOW the metagame will shift if MK was banned, but it's quite obvious that things won't become exponentiallly better for Sonic.
Besides the fact that we can't completely predict which characters will start seeing more use if MK was banned, there's still too many characters that give Sonic a hard time, and they'll all increase in use with MK gone: Marth (I swear, it can't be only me that thinks this), Wario, G&W, Olimar, and while he'll still suffer from usage in not being a higher tier'd character, I can see Luigi being an issue (because I still consider him a counter). Bias of Marth and Luigi aside, that still leaves D3 and Falco, who are already seeing high usage. There's arguably too many factors to determine exactly HOW the metagame will shift if MK was banned, but it's quite obvious that things won't become exponentiallly better for Sonic.