The League grows, why don't the bans?

With the champion pool growing ever larger, and with , , and all banned in over 50% of platinum ranked queues, it seems like very few teams are able to set up a playstyle based on banning certain champions. There is now such a wide range of possibilities, that it is very easy to pick counters to any one or two players, and the game is won. As such, I would like to propose that with the new champ select, comes new bans, we already know that three will be distributed, but why not five? This way, everyone can pick a champion that is broken or would destroy a team comp, and the ever expanding champ pool becomes slightly smaller. Post your thoughts below!