Wouldn't it make sense for a remote control to need to access local network & devices? Like, without this permission, the only way the controller would work is through a cloud service, so I would personally be pretty happy to discover the app requests this permission, as it would likely mean the app will keep working when LG inevitably shuts down their cloud server...

You're giving a lot of charity to LG. They're probably trying to fingerprint people with the extra permissions