Have the Healthcare.gov rollout problems forever wrecked progressive's enthusiasm for governing?

Matthew Yglesias claims so this Slate Magazine article. If he’s right, then that highlights an amazing difference between progressives and the regressives who today falsely call themselves “conservatives”. Under the Bush administration, we saw the worst terrorist attack on US soil in our nation’s history, the most spectacular failure at disaster relief imaginable, two needless wars launched at a total cost of over $3 trillion and with no workable plan to win either one, and the worst financial collapse since the Great Depression. Not a bit of this dulled regressive’s firm conviction that they, and only they, hold the policy solutions to all the world’s problems. If Yglesias is right that progressives have decided to go into full retreat and just play dead because a new website didn’t work well right out of the gates, then maybe regressives are right, progressives are too gutless to be trusted with governing.