Yeah, but they could bind the two maps together so you can travel/teleport back and forth as other games do it for years.
Every Exiled Lands Server is tied to their own Siptah server. You spawn in Exiled Land then have cross points/teleportation points to Siptah. If you do not own Siptah you can not teleport to it.
Its not that hard to code, but somehow it seems that Funcom has big problems doing it.