Why We Should Keep Wi-Fi Off Airplanes

I don't think that's a very good justification. If you want to use that time to think then make the personal decision not to connect.

I think you're romanticizing 'travel' too ... those hours can add up to very significant amounts of time spent messing around on your way to/from/between airports, planes and hotels - your 3 hour adventure is someone else's 20 hour journey. I've probably spent 2 or 3 weeks in that limbo this year, and can't wait until the day every seat has an electric socket and every plane has wifi.