Snowslinger: But how is it different from selling drm games directly? This I do not understand. Why release drm free if you can buy drm through galaxy? Doesn't make sensw to me at all.
The most obvious answer would be them going back on their word and slogans etc if they did. So this is a method to avoid that while also making some profit via EGS.
Another answer, is that GOG have a huge customer base, of which the greater majority don't seem to care about DRM or DRM-Free, and just get a game they want, with maybe some consideration over price etc.
I guess it is possible for some to not mind DRM while also not liking Steam, and EGS and GOG linking up could really appeal to them.
No matter what is claimed though, it will effect the amount of DRM-Free games available at GOG, how could it not. So long as GOG make profit though, and don't blatantly go against their DRM-Free mantra, then they can choose to ignore the obvious ramifications. It will only be the DRM-Free customers that miss out.
Another answer again, is that it is just a baby step to something else further down the track. You could even theorize that GOG feel or felt vulnerable by having all their eggs in the DRM-Free basket. This may especially be the case, when you consider that DRM is increasing around the world, not lessening.