I think so.
Since his century against India in that Test in Sydney, he has made only one score of 50 and that was in the 1st Test in kingston v the West Indies. He has made plenty of starts, but nothing more (although you could say in his innings of 46 he got a bad call).
So is the closet we will see a form slump for Mike Hussey or just that everything is being evened out in the world (like his average coming back down, still pretty good mind you )? I think the latter to be honest and shows how hyperbolic (and idiotic ) some people were on here comparing him with the likes of Lara, Tendulkar, Sobers, Pollack, the two non-related Richards etc.