Junior? Lol...
One thing QBR doesn't account for is points scored by other players and or weight red zone conversions. Huntley gets dinged a bit because Utah is so good running in the red zone. Compare Wilson's and Huntley's team red zone performance with them on the field. One guy clearly is getting it done better than the other.
In regards to the injury: Huntley is expected to start the Bowl game and his injury was to his non-throwing side.