The world isn't quite so black and white...unfortunately. I take it you've never arrived at a supercharger near your hotel at 2am knowing you have to get up at 7am and leave with a full charge. Yeah, you can get up at 3:30am and go out and unplug, but when there's nobody else there at 2am, the chances that your chosing to park there until 7am will prevent someone else from being able to charge in that 5 hour window is very small. Is this a common scenario...nah, is it a realistic one...you bet, it's been me, more than once. And I didn't feel bad leaving my car parked...slept like a baby.
There's being reasonable, an fair, and there's being pedantic.... to make this an absolute, is pedantic.