I've seen a couple of different articles on this and I have my skepticism...
First off, I totally believe that everyone should either wait in line or use fast pass. I'm sick of every Tom, Dick, and Harry claiming their child is 'special' and can't wait in line or Grandma Esther and her wheelchair have to ride Space Mountain with 17 members of her family. The abuse of the special assistance cards is ridiculous.
That being said, one line from the article mentions that 'we waited only minutes for Small World while others had to wait 2.5 hours'. I've been going to the Magic Kingdom a LONG time and I would LOVE to see proof of a 150 minute line for Small World!