I see my last post started a discussion here (and even a new thread by kbnrylaec)! Discussion is always good, until we're not throwing insults at each other.
Let me clarify some things, because I was misunderstood, and most probably didn't state my thoughts clearly.
By saying that "GOG was the only DRM-free digital distributor" I meant the only let's call it "mainstream" distributor. And one that offers exclusively DRM-free games. While I really like what for example itch.io does for indie devs, 90% of their offer are really small projects (I'm not saying they are bad, to be clear!) - something way different than what you will find on GOG. And Humble, while it has a selection of DRM-free games, most of the catalogue is Steam keys.
As for GWENT, first of all it's still in beta and second of all it's an online only game, so yes it requires you to be online to play and GOG Galaxy is responsible for matchmaking and microtransactions if you wish to use them.
Humble's far more mainstream. It's even getting more attention than gog right now. GOG is known for it's acronym: Good Old Games. New DRM free games seem to give humble the priority. Now for reselling old games, gog does seem to be the mainstream provider of them. But, don't kid yourselves. Get off your high horse, because this arrogance just might be precisely why devs are having a hard time treating us on gog fairly, especially when i hear some games are getting updated more often on humble. If you treat them with this sort of attitude and pomp, then it's absolutely no wonder they make jokes about gog. who do you think you are?