People hate regulations that take years to catch up with reality. Electronic devices OFF flight mode, are NIL hazard to any passenger aircraft in operation in 2017.
Thats irrelevant. The crew don't get to pick and choose which regs are relevant to 2017 operations and which ones aren't. I'm fairly certain that the travelling public would not want the pilot's to pick and choose which regs are relevant to 2017 operations and which ones aren't. For instance "I know what I can drink before a flight and still be capable of flying, the 8 hour rule is only for those who can't handle their drink!" or "Whats the big deal if I let my mate into the flightdeck when we're in the air. He's a good bloke he's not going to do anything stupid."
Do you get the picture? Your interpretation of the rules is not going to stop you getting kicked off or arrested if you refuse to follow cabin crew or flight crew instructions. End of story no correspondence will be entered into.