But that's just it. People need to acknowledge that MK isn't always going to have the advantage. Take MK vs Diddy on FD. Now this obviously won't occur in tourney due to banning, but it is a legitimate combination of character and stage to beat MK. There are other instances of this but that's not the point right now.
As to overcentralization, do people really think MK is why people play their characters? When we talk viable characters, we mean MK, Snake, Diddy, Wario, Falco, IC's, maybe Marth and DDD? With MK gone, these are the same characters that will flourish. Maybe ROB as well, but MK isn't what's keeping others down.