You have made it easy, and it does add more work to distribute to multiple platforms and portals.
Here are my thoughts. I know they are not requested. So read, don't read, whatever.
I agree that many forms of DRM make it harder for legit users to play the game, and this is one of the ironic reasons itch could benefit from integrating a user friendly system. One of the reasons that pirated games thrive is the convenience (especially when you don't have to pay for it). But a good DRM backed system can be convenient too. There is added value to an online platform that organizes your games, gives you access to them on any computer once logged in, promises to help protect you against malware. It's one of the reasons I'd rather buy a game off an online platform and have it in my library then go back to the old way of having a scratched up disk with my key written on the top in marker.
But even with all that, there are arguments against it. I've heard them. I've even made them myself, before I started creating my own projects and learned how hard it is. I was never into downloading torrented games, but I've had a number of games that I bought that I couldn't play because the DRM broke and that really made me mad. I've also played new games that require a constant internet connection even when playing offline, and that also made me mad.
There will still be DRM cracked games out there. With a convenient system there is one place it can help developers, even if the game is already out there illegally. Not all users are inclined to steal. Sometimes one friend wants to play a game with another friend, and it's in that moment there are 3 choices the friends have.
1) buy the game
2) bit torrent download the game
3) pass the game on a USB drive
It is a battle against convenience. I think most would like to support the creators they like, but it is just too convenient to pass it over on that USB.