Is it stupid to ask what skills a 12 should have?
Is he quick for a 12?
Does he have good footwork?
It is a given he has no ball skills
Does he have good vision?
Does he break tackles?
Does he have a good kicking game?
Is what you are saying that his best skill is to get tackled so his teammates can recycle it quickly, and have a backline movement without him?
He is one dimensional, steady & reliable but he is still one dimensional.
I'm not sure WJ expressed it the best way possible, but I get what he means. Within the Tah game plan, Carter's skills are a good match and a key part of getting front foot ball for the next phase. His defence is equally important. Write down a list if you can of those people who have beaten Carter pointless when he's been defending all through last year. Pretty short list hey? Not every member of your team should have Kurtley's skills. Every team needs a balance of styles and abilities. I've said already that I'd like to see Horne play 12 because he has Carter's skill set plus the ability to set up his man outside. But if you pull Horne in one place, who is our best 13 and would it weaken the team overall. Right now our best team has Carter at 12 and its pretty good because it works well for the way we want to play. If we want to crashball and suck in defenders we use Carter, if we want variation we go to Cliffy, or Mitchell on the cutback, or Kurtley running from deep, or Horne on the cutout. Having a lot of options allows the element of surprise - you never know where the point of attack is going to come from.
In one way however, I agree Fainga'a is essential for QLD. Cooper must be one of the worst defenders God ever put breath into. Ant's defense provides some level of cover to the QLD black hole. In that sense, and only in that sense, Fainga'a is more essential to QLD than Carter is to NSW. Strangely, if Carter was playing for QLD he'd carry out the same role just as well.
At Super level, and within the Tah gameplan, Carter is widely underestimated and is a very valuable member of the squad. I don't think he's Wallaby material but Ant Fainga'a isn't either and hasn't yet shown the skillset that step up would require. Deans misfired badly when he tried Fainga'a out there and it was clear for all to see. Maybe in a year or two; we'll see if he can grow into it.