No, it's not the only official response.
Here is a more positive one, which uses the same weird "excuse" for not having it yet, but it's still positive future wise (FYI, Trevor Longino is EnigmaticT):
PCG: And Linux?
TL: Linux gaming is also something we’d love to do, but we haven’t made any announcements about it yet. We’ve been looking at it.
I’ve been making public statements for a while that there are technical hurdles. Steam’s approach is to say, “Here’s our distro, we support this distro. Have another distro? Sorry.” That’s not how GOG does things, we’re more free-range gaming. So we’re looking at how to deliver the GOG experience on— we can’t say every computer, because you can of course hook up an E Ink display with 2-color CGA as your monitor, use Lynx as your web browser, and run some weird Debian distro that you’ve custom modded to do just what you want and then say, “How come I can’t play your games?”
PCG: I’d love to play Fallout 2 on an E Ink display.
TL: Yeah, something like that? No, we won’t support it, obviously. But we want to try to get it where the majority of gamers, if they’re on Linux, will be able to get a game and expect it works. We haven’t found a solution, yet. We know there’s a big demand for it, just like we know everyone wants System Shock with 25 thousand votes. It’s tough, because the rights with System Shock are just a mess. Likewise, we know people want Linux games. And people are saying “You could just distribute the TAR and we’ll figure it out.” Sure, we could just distribute the DOS executables and just let the Windows users figure it out, but that’s not how we do business. So making that experience on Linux is a challenge and one that we’re trying to address.
The main ideas:
Linux gaming is also something we’d love to do, but we haven’t made any announcements about it yet. We’ve been looking at it. making that experience on Linux is a challenge and one that we’re trying to address.