When do we not reverse the AP arrow?

[Shooter14]

Thanks for the feedback guys. It seems like I'm getting two different answers though.

I'm still having issue with why the casebook has both these situations; "foul" and "kick ball" and has two different rulings. On the foul it clearly comes out and says "A will keep the arrow", but on the kick it says "postpone" the arrow.

In my opinion, if an inbounder throws the ball off a players back then that is a "legal" touch because a player in bounds contacted the ball, whether deliberate or not. "The throw in ends when the ball is touched or legally touched." In that case, the ball was "legally touched" in bounds.

I just feel like there is a reason both plays are in the casebook and a reason it says to "postpone" the arrow. I believe it's in the casebook because, in my interpretation, a kick is the only time, by definition that a throw in ends (because it was touched inbounds) but the arrow is not changed (because of the kick) until another subsequent throw in is allowed and has ended.