Why is this so confusing

[Rita C]

A1 is throwing the ball in from the endline at As frontcourt. A2 tips the ball and it goes into the backcourt where A2 touches the ball again and it goes out of bounds.

Afterwards one of my partners insisted this was a backcourt violation. This is the second time I've come across this. On the way to a meeting recently we discussed question 93 on the test. I insisted the answer was false and the others were saying it was a backcourt violation. (I had the last laugh on that one.)

I finally found casebook 4.12.6 that supports me. While not specifically the same situation, it does show that a backcourt violation should not be called.

The confusion seems to be in the "new" definition of when a throwin ends. I keep having to show that you can't have backcourt violation till player control has been established.

Just venting.

Rita