I don't think it's because it's "considered déclassé". Some people have disabled their alarm years ago, because an alarm isnt useful if it's ringing all the time. The rest haven't even had an alarm to begin with, or just really like the sound of it.
It’s paralyzing! The correct, normal, healthy reaction to something like this is profound alarm. But that’s foreclosed because expressing alarm is considered déclassé. So.. how are we supposed to react? Treat lunacy as normal? And so the normalization of this nonsense undermines our whole politics.