Yes it does. It's worth bringing up. If you go through the trouble of installing an OS whose existence is based on this policy, you should know if your rights as a consumer will be ignored.
Er, maybe not when an update comes out, but about iOS in general? I've sure heard and read plenty of discussions about the app store. The iTunes / App stores is specifically the reason I do not want an iPhone (again).
In this case, I get that its linux, but its Valve's branded linux. Complaints about Steam, the impetus behind the distro, are completely relevant.