Yeh. It's worth remembering that 'quadriplegic' doesn't necessarily mean total paralysis in arms and legs, it can refer to lesser degrees of affliction in each. It's obviously an awful situation for the bloke and his family though.
And yeh (again) the only bloke I'd be tempted to boo (and I don't think i'd do it) was the dick who, even after it was clear a serious injury had occurred and a report had been made, wanted to argue with the ref that it was the tackled player's fault. But, I guess even he might have worked out what a dick he looked by now. McLean, on the other hand, may deserve a short penalty for lifting, but he has been trained by a club that has brought the following 'improvements' to the game 1) the crusher 2) the chicken wing 3) the grapple etc.
Hope Alex gets as better as he can.