"a dramatic reversal"

In this story there is this line:

President Barack Obama is paying a political price at home, with 55 percent of Americans polled by Pew now disapproving of his handling of foreign affairs -- a dramatic reversal from 2009, when his approval rating was 56 percent.

Say what? Since when is a change from 56% to 55% a "dramatic reversal"? How does this kind of writing even get published?