jett mains only being able to play duelists is completely acceptable in this meta.
in the case of Asuna, the problem with his agent pool lies in the disparity between the skill level of his jett op and his raze. (The latter is way better)
I disagree about the game sense, too. Sure, they're not making mid-round calls or making reads, but their intuition plays an important role in many of their frags and is what elevates them beyond just incredible aimers.
For example, in clutches they often understand where the enemies are, which is visible in their crosshair placement.