This is so stupid and why people don't trust fact checking at all. It's basically "they said Obama is bad, well I don't think he's bad MYTH!". Or "they said he doubled the national debt, which is true but he didn't double this other number that has nothing to do with the conversation MYTH!"
The 'other number' is actually very significant to the conversation as the article was completely correct that most economists regard the debt to GDP ratio as being much more important than the raw debt/deficit figure.
It would be more accurate to say though that both are ways to look at the debt, and that it is true that Obama more or less doubled the size of the national debt.
Of course, when Reagan was President and the debt and deficits increased significantly despite his campaign promise to eliminate the deficit, Republicans blamed the Democratic Congress because Constitutionally Congress is responsible for the budgets (especially the House of Representatives).
Similarly, when Bill Clinton was President and the deficit was eliminated Republicans gave the Republican majority Congress the credit, and Newt Gingrich and John Kasich even took personal credit.
So, if Republicans actually cared about intellectual honesty, then from the 2011 budgets on, then it's the Republican House of Representatives that is to blame for the increase in the deficit, and not President Obama.