Rule means what?

[PIAA REF]

I am having trouble with what this rule means. Rule 10 Section 3 Article 6 (pg 62 of Rule book
letter a: Preventing the ball from being made live promptly or from being put in play.
At first I thought maybe it had to do with slapping the ball away after a made bucket but I don't think it does now. The reason for this problem is we had an official that read this rule and after a team had a delay warning on them earlier in the game a player hit the ball away as it came thorugh the net on a made bucket. The official correctly called the delay which in this case was a T (second delay after a warning) but IMO incorrectly called it on the player instead of it being a team Technical. This happened to be the players second technical of the game and was ejected. If anyone can please elaborate on this ruling.

Thanks.