As a kid I did something geeky that no one would need today. A compressed timetable for the train for common times of day that fits inside my wallet. For example if all day the train is 24 and 54 past the hour that is a single row.
No need for that when google maps or a trip planning app can tell you
Still, when I'm traveling I set the expectation that I'm only sporadically available. Not that different from normal life, actually (especially outside of working hours).
Ultimately they might get away with ripping out the whole entertainment system out of the plane altogether for another .1% increase in efficiency.
My understanding is that it's actually a condition of using Starlink for commercial aviation. Every other airline that's announcing a partnership with Starlink is also providing it for free to customers.
IMO, it's a way for Starlink to put pressure on other satellite internet providers. The utilization of free wifi will be way higher than paid wifi. And the other networks - be it OneWeb, Viasat, Hughesnet, etc. don't have as much available bandwidth.
As a side note it's unclear if it would even trigger in the air because afaik the trigger was immediate when the signal was sent and the pagers shouldn't have signal at altitude just like a cell phone.