When this secret meeting took place and the pressure was applied, the AMTA members who didn't call the bogey man's bluff ought at least to have negotiated that they would in some way indemnify their customers. The fact that they didn't shows that the customer's interest is second best.
Fitting AT does of course attract a cost. My belief is that the manufacturers by and large find that cost acceptable, as it brings in service work. I don't hear any of them clamouring for AT to be abandoned; quite the reverse, as even more complex measures are introduced.