My two grand children have flown as infants in car seat on planes Facing back and as toddlers facing forward. Mom even found some straps to attach car seat to her rolling bag for the terminal walk.
Southwest needed a system that could create new flights/schedules to redirect available aircraft/crews to available airports. And then schedule passengers as appropriated. Yes, easy said, NOT easy executed. (I fly three times a year roundtrip HOU to RIC. On that run at least 2 of my aircraft come from the far north.)
Good point, but one should report individual issues as they are identified via the proper channels. Again, we all are getting a small bit of the story and the concerns may have been reported on several "cases" properly.
No one builds a radio receiver (1/2 of an altimeter) with perfect total out of band frequency rejection. Physics does not work that way. Frequency may be modulated digitally but it is in fact not digital. You build good enough. Now thanks to FCC good enough is no longer good enough.
Proving safe requires testing all versions of antennas, altimeters, Cell equipment in real world environments to show mutual compatibility. Just pray that there will not be two or three crashes before the world figures out there is a problem.