but the IP command thingy was added so that you didn't have to do that wasn't it?
The Port command in the launcher was added so you don't need to make a secondary shortcut on your desktop to launch EiRR with once you've got the battlefile.
You still need to port forward though if you're having problems with multiple people on the same router, the added function in the launcher just means that you're not mucking up battle reports and pissing EiRRMod off for a couple of years straight lol.