They should've done away with the transporter entirely, it's a universal "get out of jail free" card that has to regularly be made nonfunctional for some arbitrary reason or another (curse that ionic interference!) in order to maintain dramatic tension. Certainly the original rationale of saving on the production budget doesn't hold much weight in this film.
It's not really Star Trek without the transporter (along with the phaser, tricorder, etc), much in the same vein as lightsabers and itty bitty fighters being quintessential Star Wars.
And how many movies have the transporters been disabled for plot reasons? Okay, you have I, II, IV, V, VII, X...
...um, nevermind.