Every single article and forum I read references the screwed up voting. If you’ve read articles as you say, then I’m sure you’ve seen them yourself.
http://www.mtv.com/news/articles/1663830/james-durbin-american-idol-elimination-reactions.jhtml
http://www.sacbee.com/2011/05/12/3623831/american-idol-rocker-james-durbin.html
The list is very long, but I’m sure that can get you started on the BS that’s going on with the voting system.
NOT A SINGLE MENTION OF THAT IN ANY OF THE LINKS YOU POSTED.
Checked your links. No mention of voting problems.