Locked down ARM systems have far longer history than this fairly recent Win8 debacle. One of the most notable examples is TiVo, which led to the phrase "tivoization". I'd argue that the number of "open" ARM devices is what is growing with RasPi and others like it.
The problem is that locked ARM is becoming defacto standard. Soon most main-stream laptops will be ARM based and locked down. Compared to that current issues such as "should I accept EULA?" looks very small.
