Exactly it just goes back to my thoughts on Felix Jones or Jerrious Norwood in the true full back posistion, completely stupid and unrealistic.
I think the best way to implement this is to have the "qb" of the wildcat formation have some sort of minimum rating on his throwing ability for them to be able to play the posistion.
Ronnie Brown can throw the ball somewhat so its fine, so can LT, so can Brad Smith, Josh Cribbs, Patrick Crayton, Issiah Stanback.
You get the point, I think if there is a minimum throw power/acc rating for that "qb" posistion in that formation then this could work out just fine.