User blog comment:Deshiba/Ban champion X!/@comment-1985493-20130811215224

Idk about all that, it seems a bit extreme. For example, think about this: a team decides to use all their bans on top lane except for, say, Renekton and then first pick him. If doubt you could think up 15 champs at can reliably lane against Renekton. And thus, the enemy top laner would be screwed b/c they'd be forced into somebody totally foreign going into it: ie top lane Soraka v Renekton. That would be a very infuriating experience for the Soraka player. Not to mention how excrutiatingly long pick and ban phase would be, not to mention that more than half of the draft games out there would end up in que dodges because somebody has every champ they are comfortable with get banned. There's so many champs that wouldn't ever be played. Ever. And people would pretty much always be forced into champs they dont want/like. It would be a really crappy experience.

tl;dr There's just so much room for excess and unnesscary trolling that could happen in this system, I can't imagine Riot  ever adopting a system like this.