I have heard arguments that wireless devices are not really a threat to airplanes. Still, it's the law that they be turned off while a plane is in flight. No-one should be penalized or even criticized for upholding the law, especially a law relating to airplane safety.
I hope every relevant aviation authority, oppostion member and worker's group speaks out against this action. Harper should issue a retraction, as well as an apology to the pilot, the stewardess, and all air travellers.