I thought itch did that too

Yeah I was aware of that. I don't know if that constitutes the last hope for all gaming, but it's definitely a positive. Other stores have a much better user experience, and until they rival stores like Steam in functionality and ease of use, actually owning your own game is just a very nice to have feature and nothing more. Of course, I wish all stores did that. I don't want to have to resort to piracy if my steam library goes poof, but so far I haven't had to, and piracy is still an ethical choice in that scenario.

My point isn't that steam is better, but that GOG has a couple nice features and several downsides, and it is by no means changing or saving the industry. They have a long way to go, and I don't think saving the industry is the end goal for them.

That's just wrong. They just sell you a license and provide a DRM free game. You are not supposed to continue playing the game if the publisher terminates your license. They just give you the ability to do it, but it has no legal value

You never have bought a game even when buying it on physical media. You always purchase a license to the game.

You really need to look at what you're buying. Whether it's a download, a DVD, or damn floppy disk, you're still just buying a license. A very revokable license. If it's online, the publisher can cut you off.