Well, Dick, are you saying the JCP is simply factually incorrect when listing as one of the three key benefits this (page 29):
A long term reduction in the risk of mid air collisions, especially those
involving small VFR GA aircraft, through fitment of traffic displays
and using aircraft position data from the ADS-B broadcasts, which will
enable aircraft-to-aircraft collision avoidance.
AFAIK, what is called "ADS-B broadcasts" above is what the Garmin manual calls "ATC radar transmission".