From the article:
As of June 30, AIG’s finance arm, which originates first and second mortgages, recorded delinquencies of 3.68 percent in subprime, 2.13 percent in non-prime, and 0.81 percent in prime.
The estimated inventory “shrinkage” of the average retail merchant is 2%, and they don’t get a foreclosed house to sell to cover costs.
Either the lenders knew their business, or they deserved their losses.
IIRC that is actually less than most lenders now and pretty close to typical expectations. That's delinquencies, not defaults.