I fly the A320, and have done quite a lot of auto lands this winter so far.
I'm amazed by the fact that we frequently have to do an additional PA to reinforce the PEDS message. People seem happy to risk a successful automatic landing just so they can fiddle with their iPhone or receive a text a couple of minutes early.....
Our minima for many of these landings are 75m visibility and NO visual references. Not the time to be risking some kind of interference from the cabin.
DH