Players limiting themselves has nothing to do with GW. People do that for a variety of reasons, though anybody who complains about it needs to have somebody explain to them the concept of free will and then get to work on a little bit of self-actualization.
So were you under a rock for that whole RAW thing then? Not being wholly responsible for dogma doesn't mean that you somehow didn't have a hand in it through your own ignorance and poorly phrased remarks. GW Fanbois only need the least of excuses. GW are really good at handing these out, presumably to make their own lives easier and no other reasons.
As for free will: you are aware that applies to everything right? Including the complaining you're complaining about? You'd get better traction explaining Free Willy. At least that wouldn't be mind numbingly fucking obvious.
Besides, I'm not really blaming GW entirely for this. But it's a thing that happens. GW's issue isn't so much that they cause these things, but that they're shit at combatting them. It'd be easy if they had an ounce of thought for the responsibility they have. But when arseholes take something like Rules As Written and run with it, it's not GW's fault entirely that Jervis tried to clarify as soon as humanly possible and they fucking ignored him (granted his response was weak and he set the ball rolling in the first place).
GW should still be held to a higher account for any issue. Why? Because they're the sole source of authority in this context.
It's a complicated issue. My opinions are all over the place with it.