There is a recent survey of ~20,000 players showing that there is more interest in RPPvP than there is for RPPvE.
You can see it in this OP.
Regardless of how the numbers will ultimately break down, this is absolutely reason enough to release at least one RPPvP server at launch. Simply convert one “slot” that was dedicated to an RPPvE server to an RPPvP one.
If the RPPvE servers fill up too fast and there is too much demand, they can simply release more servers!
But if there are no RPPvP servers at launch… ???
How are they going to gauge interest?
Absolutely nonsensical.