Actually, if you look back a "wee" bit father, we've had about 5 of the same kinds of singers win the competition. You're right about that though Coyote.
Season 7 - David Cook (2008)
Season 8 - Kris Allen (2009)
Season 9 - Lee DeWyze (2010)
Season 10 - Scotty McCreery (2011)
Season 11 - Phillip Phillips (2012)
And they're all symbolized by the AI meme that spreads around, known as the "White Guy With Guitar". Lots of people, I bet, are believing it'll happen a sixth time this year. Here's hoping we get a girl winner though.
Also, if you watched the opening theme, you could see in the part where the showed 3 of the Idol winners, it was Scotty (left), Phillip (center) and Kris (right). Lee DeWyze won the year after Kris, but wasn't put in his place because of how underwhelming he performed. More/less, Kris was a bit more popular. (That's just what I'm observing from AI discussions).