They kinda could have clarified you can't play against other random players BEFORE people started redeeming and pre-ordering via GOG.
why should they have? All the games on GOG have been DRM free sinse the sites launch, and as such wont support the online features of the games. This a smart thing cause all it takes is one person to buy a DRM free game (if you could use the online features) and pass it around say 30 people or post it online for all to pirate. Bad enough people can pirate the single player.
You could make the argument that Larian should have mentioned this as people may be new to DRM and GoG, but then fool on them for not finding out what DRM is and how not having it affects your game cause GoG mention it on thier front page.
