No but winning more games based on champion knowledge and outplaying the opponent rather than losing at champion select cause gg vayne is more desirable.
Banning was implemented to be used strategicly as a means of making your team comp work or banning out something on their team to break their team comp.
Today its only used to ban what annoys one player, and what's just flat out broken and instant win or untolerable in the meta. It serves no purpose than a bandaid to champions riot can't balance and increasing it to 10 would make it more desirable to appropriately used.