That's just nonsense. There were no "plans to keep things going" -- if that were so, then whose plans were these, exactly, and why weren't those plans enacted?
If the default threat were really no big deal, why did the stock market plunge 15% during the Republican-engineered budget crisis? Clearly somebody thought it was a big deal, because it requires a hell of a lot of selling to make the market move like that.
The Republican congressional leadership stated outright that default was preferable to raising one penny of taxes to balance the budget. That's not "business as usual". It's arguably not even constitutional. But it's certainly never happened before in the history of the United States.