Forgive me if I believe he'll just be contrarian and take Epic's side on this solely to get attention.
I would be very surprised if the guy who did a video a few weeks back about how capitalism is strangling gaming would so haphazardly support a company; even in his previous video his big argument about the value of the Epic Game Store was that they weren't giving Rape Day the time of day, which is so narrow of a bar to clear I wouldn't consider it even remotely a ringing endorsement. And it's not like there aren't obvious digs to be made in Valve's direction either (why is something that can be marked private on the server side so easy to access by anything on the user's side?). I'd be very surprised if he doesn't complain about this.