You don't have to use them. No reason to impose your views on every one else by urging the staff to exclude the content. (I'm sure they are more interested in making money any way.)
Far as "to quick" it needs to have a decent pace to it, or people get frustrated.
Regardless, It's not as if you will only have one character.
Those who will hit the cap and complain there is nothing to do, will do that regardless imo.
I won't be using any exp boost items my self
Just saying, I'll be sure to play on those 2x days :p