Should bans be changed from the current 3 to more?

So everyone knows that this is a very known issue/topic and it hasnt been assesed yet. With an ever expanding champion pool that already reached 129 champs it gets hard to limit bans to 3 per team since it leaves a LOT of gaps open. There is always that one champ that escapes the bans and dominates the game. Especially at lower ELO (Yi, Udyr, Xin, etc) I understand that in the competitive scene adding more bans would change a lot since it would mean more chances to lockdown a pro player since teams tend to know what champions their opponents play, but in ranked games it would probably be a welcome change. What do you guys think and what are your views on this?
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