The issue for me very much are those games that already have native ports. With those native ports the developers dealt with all the questions that GOG is putting forth, like what distros to support, how to package the games etc.
As it is now with all the games on GOG.com with native Linux ports already, there is a dilemma since buying the games from GOG means cutting yourself off from the Linux version.
How would shipping the respective Linux installers and binaries as an extra(just like all those wallpapers, manuals, art work, soundtracks, etc) hurt GOG and/or their customers?
What some of us want GOG to do is to upload a bunch of files to their servers and to provide them on an "as-is" basis. That is it, nothing more. But GOG's all or nothing policy is getting in the way of that. GOG is hellbent that downloading any binaries for the Linux OS from www.gog.com MUST be and stay impossible.
Who benefits from that stance and the absence of Linux binaries? Nobody at all, as far as I can tell.
Yep this is as simple as the situation is. They can but they dont want to. Quite poor on their part is you ask me.