WvW Mapping
Yup, pretty much. I do not see an issue with that though… Your server will eventually have the point you need at some time or another. Or you could lead a force to get the point you need. Part of the challenge to complete the maps.
Do you have to explore unique POIs on all 4 maps, or just a set for the 3 borderlands and 1 for the eternal battlegrounds?
Either way this falls firmly under the “it’s an achievement I should be able to do it by myself” argument. Guess what? There are plenty of things you have to do WITH people, or in the case of WvW / PvP, AGAINST people.
Enjoy.
The 4 maps are separate, so you have to map each one. Still, optional achievement is optional.