Games are still software and being in control of your computing is still important. The media content when within a game has a functional purpose in the software.

The modern games industry sucks, and being proprietary software contributes to reasons why. No one can resist the temptation to use power they have over their user’s computing to enrich themselves at the user’s expense, and many appear to even want to exploit the users. More games that are open source/software freedom respecting could make the games industry less sucky.

Without the service what can you use the hardware for? Play the games you already downloaded?