I have heard that as well (not that I'm much of an official source). I'm pretty sure about it. It was, in part due to starting christmas immediately after Halloween

. It was also in part due to...
...our improving economy. Some may disagree, but everything I've seen about the economy at this point is that we are in a (pretty darn slow) upswing and have been for almost a year.
One of the best indicators of this is the housing market. Values are returning. Prices have stopped declining and are beginning to rise.
So, while, yes, we are in a recession, I don't think that's the SOLE answer. I also don't think D&D hurt Hasbro last quarter. I think I read that D&D actually did well. But D&D isn't big enough to impact Hasbro's profits. I agree, though, that Hasbro may have told WotC to cut costs wherever they can.
On the other hand, in my opinion, it may be that some companies are still suffering from the recession even while the economy improves. After all, if money is tight, I'm going to put food on the table before I buy boardgames and toys.