Reasons why the implementation of ten bans will be bad

Now don't get me wrong I hate yasuo and doors and "insert annoying champ here" as much of the rest of you but 10 bans will also bring issues along with the good.

List of issues I foresee

1. longer champ select times
2. confusion in champ select(beginning only)
3. said confusion leading to dodges hence even longer champ select
4. the death of certain one tricks

Now I'm not saying 10 bans shouldnt be implemented but I think that their are reasons it hasn't been previously including the ones listed above. I decided to make this list after seeing constant complaints on the boards and just want people to realize both sides of the issue before crying to rito about them not being implemented yet.

Edit: I'm not saying 10 bans shouldn't be implemented but rather that there are reasons that it shouldn't be rushed out by riot. Something needs to be done for the evergrowing List of champs but I'd rather a quality system be put out then a poor one that needs a large amount of tweaks for it to work well