I love that site.
Bear in mind, that the site is talking about "public debt" and not the budget like this article is. Just the same, IMHO it's the public debt that matters more than the budget deficit, because the budget is only what we're planning, and the public debt is the actual amount of money we owe on our assets.
There's lots of ways of looking at it and (again) IMHO they all look pretty good. One way is to see how the total public debt isn't growing as fast as family wealth is. Another is the value of gov't assets-- federal land alone could pay off the debt if we wanted, but I for one wouldn't want to.
Bottom line: we're doing fine.
An even better way to look at it is the land belongs to the people and the incumbents shouldn't be spending against it to buy re-election.