That's not really a valid objection.
The original website included the numbers the author was using to make those graphs, and it appears he has hard numbers up until at least 2003.
I haven't plugged in more recent numbers, but it seems obvious from the scale of the existing numbers that the lower numbers of the deficit in recent years is not going to change the overall shape of the debt curve in any significant manner.
The deficits are going down faster than predicted, but they are still deficits, and not tiny ones. The debt is still going up.