He ignored some pretty serious depressions in his analysis as well. The panic of 1819 comes to mind as a pretty serious one. People ignored the desires of those long on stocks and real estate to bail them out. They realized the problem was too much debt and just let it work itself out despite the pain it caused them in the short run.
Then there is the depression of 1920-21. This depression probably highlights most clearly the Austrian theory of the business cycle and why the Austrian response to the bust is the correct one. There were no interventions in the economy following the bust. It was a very serious contraction by any definition.
We live in a world that's consumed by debt. We're taught that debt is good despite our instincts to the contrary. We're taught that being irresponsible is the way to get yourself out of short term pain. Listening to these people seems like madness at this point. The real reason that budget cuts are on the table is that everyone knows we're all broke. After 10 years of this I imagine people are going to get fed up with bailouts and inflation. Krugman will still be crying for more stimulus while a few people might get serious enough to let the banks fail and start over.
Our fear of short term pain might be the worst part of the modern political system. We'd rather avoid some of the short term pain even if that means dragging things out for decades.