"Long Jump" on a Throw In?

[Freddy]

Originally Posted by bob jenkins

9-2-10 Note can be read as allowing the player to jump over the court, as long as the ball is released before the court (or anyone on the court) is touched.

Correct, it could. However the NOTE after 4-42-6 requires that, "The thrower must keep one foot on our over the spot until the ball is released. " Therefore is it correct that, at least with a designated spot throw in, the long jumper is not complying and is illegal?
What seems interesting is that the same doesn't seem to prevail for a throw in after a made our awarded basket where there is no designated spot.