Well see those pages didn't magically quit working and thus grounded the flight because someone decided to do an update.
You do understand that point right? The iGadget app glitched and the planes couldn't fly because of Gub'ment rules.
The phrase "single point of failure" comes to mind. If all the airlines adopt the iGadget and a bad update shuts down the system (remember iMaps?) then apparently under FFA rules the planes can't fly according to a Freeper claiming to be a certified pilot. If this is true it is the very definition of a single point of failure.
Maybe some rules about iGadgets for planes adapted to not get automatic system updates or app updates until they are approved by the FAA is an answer or just carry the damn hardcopy in case something goes wrong.
There are no updates that are forced updates by Apple on the iPad. So, it’s a no-brainier to have updates, checked and run through the paces.
This is only a problem in your head and not with the airlines or the FAA ... :-) ... You’re trying your darnedest to make that little pile of dirt that you’ve constructed in your head - into a mountain, but you just can’t shovel the dirt fast enough ... LOL ...