This is a topic that has been discussed within Olympus recently. I'm not sure how /v works on other servers, but for Olympus MVP+ don't have access to it, you can win it from the perk chest though, by using perk keys (from the store/monthly rewards, etc). I don't think players should have access to it, as they only use players would have for it, is to be hidden from in-game commands.
It can also make it harder for a staff member to tell who is in vanish.