The Special Olympics folks have made a formal statement about it.. from this article
http://www.realitytvmagazine.com/blo..._idol_c_2.html
According to the official Special Olympics press release, “While polite isn’t a word one would normally associate with Cowell and company, a viewing of the episode in question shows that the judges were in fact gracious and very encouraging to Jayne during his rendition of "God Bless America." At one point, Abdul commented admiringly about Jayne’s spirit and advised him to "Always believe in yourself."”
The press release went on to state, “Whether on the stage of American Idol or on the field of competition for Special Olympics, people with intellectual disabilities don’t want to be pitied. They want to be judged for who they are and appreciated for what they can achieve. American Idol should be commended for providing Jayne with the same opportunity to succeed as any other contestant.”