Very true, your example is airtight. Where mine gets a bit more in the weeds, is the air conditioners and filters in the cabin have an express purpose of manipulating the temperature and climate, that is their only purpose. Otherwise the air coming into the cabin would be so hot from being compressed in the engines everyone would die and all the machines onboard would overheat.
It was a bit more technical, complicated, (air inside a plane in the atmosphere is still air from the atmosphere being manipulated!) and on the edge though, and not as easily conveyed as umbrellas.
Kudos for yours though, it was to the point.
So perhaps, they should just ban the air conditioners on jets to get it technically correct?
Incorrect. MacOS and iOS both started out as Darwin, the Mach microkernel, and FreeBSD. 25 or so years ago, Apple had open repos and package managers to install standard Unix tools, and the core of the OS even used things like cron to schedule tasks. You could even configure MacOS to not launch the GUI and run it command-line only. https://en.wikipedia.org/wiki/Darwin_(operating_system)
Over time, Apple slowly turned everything into Libraries, Extensions, and Frameworks, and slowly closed-source everything application-by-application. The same way Google is doing with Android.
And if you missed the memo, there is no Google equivalent to AOSP. They killed it in March, because they are doing the exact same thing.