It forced the banks to give loans that they wouldn't otherwise previous to the law because of the default rates.
In this case, it began the game of kick the ball. You hope you aren't the one it lands at. It is bad policy to disregard default rates and force banks to give loans against their better judgement.
That some banks got stupid and started taking advantage and playing the kick the ball game too... Well, that just cements it.
It was stinking policy that began it. It was stinking policy when they continued it, it still stank when they did it again. Everybody had their hand in the grease ready to rub it on the face of the US.