I'm guessing the buggy will stay in a garage inside your base, that's why they're wording it that way, since you'll only be able to use the vehicle on the planet with the garage. Would be nice to actually be able to call in a drop from your freighter though (since you can teleport it to your current system anyway).
What I'm hoping for though is that the Path Finder update might add in reasons to actually explore with the buggy, generating gameplay-important points of interest that are a bit more different in nature (not just resource gathering and word learning), to encourage exploration. That would however require more substantial changes to the core gameplay, so I don't know, we'll see. They've certainly made a decent chunk of stuff from release to the Foundation update, so after these 3 or so months maybe we can expect some fundamental changes to at least what's there to do on planets. Otherwise, even though driving a buggy on those planets sounds pretty cool and fun for a while, it's really not enough. Sean's mentioned some stuff about the terrain generation and how they're still working on that as well, so it will be nice to see some changes and potential variety in there as well, since the Foundation update actually made the terrain even more interesting than it was before.
In any case, it's good that they're still working on the game, would've liked more communication from their side, and hopefully one day they'll make into something pretty great. I was actually thinking of booting up the game again after a longer while, so it's cool that they'll be something more to do.