I agreed, I'm not sure why they took it off of the Right stick...
I have a solution for you though... When you wanna select your quick audible, press and hold X(A on 360) and then you can cycle up and down... When you release the X/A button, you will pick the audible you originally pressed X/A on... Make sense? Its like the old "bluff play" playcalling thing from years past...
Hope this helps.