Because she's famous, beautiful and talented.
Go to the imdb boards and you'll see a bunch of no talent actresses (read as waitresses who've been extras in a disaster flick) slagging her off as not having any talent. Most of it comes down to jealousy. Most people who write columns for respected publications (not bloggers) say that she's a very talented actress who's only going to get better.
Don't worry too much about it.
"Purgatory's kind of like the in-betweeny one. You weren't really shit, but you weren't all that great either. Like Tottenham."
I'll try being nicer...if you'll try being smarter.