I agree, but I'm not so sure that's a bad thing. If one team provides a CAR who's competent and aware and the other provides an incompetent idiot, I'm far more likely to overrule the incompetent one and simply go with the one I trust. Supply a good CAR and you'll get a lot more faith put in your team by the ref.I'm not sure I agree with that. If you have a competent CAR on one side and an idiot on the other it gives an advantage to one side.
I've refereed in three leagues this season, one with no ARs, one with NARs, and one with CARs. On balance, I think I prefer no ARs to CARs. Some CARs are excellent but it's rare to get two good ones in the same game.