And this is all supposed to tell me what again? I don't see how any of this is relevant to my post you quoted. Are you insinuating the victim couldn't do these things under normal circumstances? Because we don't know that. Good luck bracing yourself or maintaining your posture while unconscious.
You could make this a requirement for literally any ride if you wanted to. No one would find it acceptable, hence why it's not enforced, but you could do it. Again, I don't see how this relates in any way to the actual circumstances of this event.
You asked this:
And how do you propose they spin such a restriction without sounding completely discriminatory?
So my wife and I poured a shot of bourbon each, and used our combined industry and legal experience to come up with a proposed answer to your question.