Correct. This is exactly what I am saying. They have to continually "add" variables to get the results to match up AND predict doom and gloom. I'm sure it starts to become a game like "I can predict the number in your head. Pick a number between 1 and... add 3, pick color, ..... TA-DA!"
Hell, the leaked e-mails a few years ago proved that they were tinkering with variables and data to get desired results in their modeling. "...can't explain the lack of warming and that's a tragedy... must hide the decline... norm the data..."