Baning suggested champs !!!!

RIOT i dont see the point of putting champs you suggest and you still can ban them i lost a ranked game cause janna accidently baned heca and heca (accidently) janna

please make that its not posible to ban the champs what you suggest... yes this can go wrong but just in 1 scenario and it can go good in many other like when someone sees a main yi and bans him or doesent notice the suggestion and bans him or idk :)