Yeah, I think the issue is exactly what GIMH has said. He was one of only two batsman who ever looked comfortable for a decent length period today. And it's always the case. He always looks one of the best batsman in the match. Until he plants his front leg and misses one. Despite always looking one of the best batsman going, you can still count the number of match winning performances with the bat on one hand. I think what pisses people off is he still seems to have a rep of being one of the best players in the side, both by CA and the general public and media, when really, he's still not really peforming and hasn't done much since the last Ashes. The side is often doing things to accumulate him, whether it be wherever he wants to bat in the order, or whether he wants to bowl, and he's not really repaying the faith.
He gets unfair slack on CW, mostly I feel as a reaction to his perhaps overhyped reputation outside of the forum, and he's really valuable to Australia because of his bowling - I'd take him in the England team in a heartbeat - but he's still part of the greater problem with the Australian batting line up. His dismissall today was a massive boost for England and a big kick in the teeth to Australia, both because of how well he was batting before that, and because of the selfish and idiotic use of the review, which must be terrible for team morale.