Sounds like an good idea to look at it in future.
Since you not using any internet activity while beeing on LAN Mode.
But i noticed from tests, when i turn off my internet, im not even able to start a game in LAN Mode since the Launcher says, invalid host even on LAN MODE. So LAN Mode is completly unnecessary, except, if you are in a online connection, and trying some GSC Menus in private Games etc.
Yes, i understand that LAN-Mode doesn't actually mean that you can play offline, it just says, that you playing on your own net, and don't connect to others. (Except for UserAuthentification, Login with Plutonium). But i would prefer a LAN-Mode without required internet connection also, would be just nice to play, even when you don't have any internet connection atm, for reasons. And no one needs to refer me to a different client with offline patch, that should be also a feature, in Plutonium, in all Games.
That was my opinion.
