Using Backboard to Gain An Advantage

[SamIAm]

Saw this a couple of weeks ago in Texas vs. ?? NCAA game. It appeared in rebounding action that I saw players push off the backboard so as to not go underneath/behind the backboard. I think the players tried to time a rebound for a quick put-back. The push off the backboard kept them in position for a subsequent rebound. It is a very athletic play and might not be seen often.

I looked up the rule, Section 6, Art. 1H. It is listed as a technical foul to put your hands on the backboard to gain an advantage. Is this one of those rules that is ignored as the penalty is thought to harsh?