Except fire stations and the like, hopefully >.<
Though I do agree that it is a little brash to say you won't shop here again, this whole situation is created by *DRM* and GoG are supposed to sell DRM *free* games. If I lost my key and GoG went under, I'd be stuck with a half-functioning game.
That said, I will continue to shop here, but saying the games are DRM-free is evidently not true, at least in this case.
Multiplayer server keys are not really DRM, they are mostly just a unique identifier the server needs to differentiate each client. I'm sure there are other ways the clients could be identified, but GOG can't change that, they don't control the servers.
As for the potential of losing a key, honestly I don't mean to be rude, but if you lose the key, its your fault, not GOG's. At this point, anyone who does any kind of PC gaming should already be used to the fact that you need to keep your keys safe. The fact that GOG sells their games DRM free doesn't change that.
And yeah, I'm pretty sure the essentials were still running in Poland yesterday (must... resist... temptation... to make... offensive... Polack joke!)