It's because she's "to old" and its to "generic"
Idc what they say though I mean she hits what 4 G5's in the song and 12 E5's when will the other girls
Those are high notes for females
Am i the only one that finds it ironic that this website says god hates the media yet it's a source of media
and ask's you to follow them on twitter on the top of the page http://www.godhatesthemedia.com/index.html
(that's German for "good night guys!") 
