KJ looked good yesterday.
His timing (i.e., his coordination with throwing the pass at the right moment to match the receiver's moves/location) was really good. As an example, look at the TD pass to Williams. Perfect timing.
Also, KJ can drill it in there . . . or, drop it in the bucket.
KJ seems to know how much speed to put on the pass and how much arc to put on the pass (to give our receiver a chance to catch the ball, while keeping it away from the DB).
As others have said, KJ throws a catchable ball.
That was a good win yesterday.