For context, GFN lets you essentially rent a virtual machine in the cloud, where you can log in with your own Steam account and play the games that you've already purchased. For whatever reason, game publishers saw it appropriate to demand GFN to stop offering this service. And, more baffling, some users actually suported the publisher's actions. Just to make it clear, GFN is not letting you play games you do not own, they're simply letting you rent hardware on which to play games you've already purchased on Steam.
Here is one of the game devs explaining why they asked GFN to remove the game from their platform (and subsequently getting slammed by gamers): https://mobile.twitter.com/RaphLife/status/12341813158402293...