There's a money to terribleness ratio. I'd never pay for an Orson Scott Card novel, or to see this film, but I'd watch it for free or buy one of his books from a used books store, but Orson Scott Card is a pretty extreme case. I also haven't eaten Chic-fil-a since that kerfuffle a couple years back. Those are the only two times I've consciously boycotted something, but I would never force this on anyone else.
So were people really that bothered by having to not use their devices during take-off and landing? I mean if you're taking any sort of substantial trip you still have a good 5-8 hours of dead air time when you're cruising to your destination.
It just doesn't make any sense. Devices have airplane modes.