Sorry to hear that. But let’s clarify one thing, even if login based remote access is added rather than the current pairing, you STILL need to have the port forwarding properly configured to allow remote access to the Tablo.
This is not a limitation of the Tablo, all routers have a firewall and perform NAT so you can use multiple devices behind one Public IP address. The point of port forwarding is so that you can open up specific ports through the firewall and also point those ports to one device on the router. Even with a login based remote access, if you don’t have the port forwarding (which is a one time setup), you will not be able to use the Tablo remotely.