As I've said in many threads here ... one can't draw any conclusions from the silence of others.

As has been noted here frequently, passengers at AIT checkpoints are presented with a choice of two bad alternatives: allowing someone to view their (virtual) naked body remotely, or have someone perform an "enhanced" patdown. Other passengers may have made the conscious choice to use the AIT, not because they like it, but because they view the patdown (and the accompaning verbal berating, like you received) as a worse option. And complaining about the AIT to the TSOs at the checkpoint is exceedingly unlikely to effect change ... so they may have chosen silence as a means to avoid prolonging the experience any longer than necessary.

Silence does not mean consent.