Do you really want the world looking to stop by your vacation property to use your destination charger? The point of getting them on the map is to make them "open to the public," generally if they are patronizing your place, but I think that would create problems for locations such as a vacation property, that doesn't really deal with a general flow of public visitors. Seems to me that you would want to advertise that benefit when you advertise the property.
From a selfish perspective, and from a practical one as well, I do not want the map cluttered with "destination chargers" that require that I rent a home for a week to use.