Monty McCutchen, senior vice president of referee development and training, reported that the NBA will see a few rule changes for the upcoming season through a...
Not making them real technicals is the reason the rule is toothless.
Make every effort to change any missed ones at the next whistle. Rescind the undeserved points like you would a 3 vs 2. Assess any missed ones after every game. Rescind any you need to. Kick players who get repeatedly caught out.
Then maybe it might stop. But no chance with your bullshit fake technical.