The statement represents something of a departure of the usual mutual antagonism that exists between some in the commercial space community and some at NASA. Indeed Space Politics' Jeff Foust added a tweet, "Thought: a panel at a Space Frontier Foundation conf is talking about how to increase NASA budget. Imagine that in late 90s." The Space Frontier Foundation has been a leading voice for commercializing space, sometimes at the expense of NASA programs."
In other words, the GAO says SLS is at risk of costing more than the current estimate of $12 billion to reach the first launch or taking longer to get there. Similar cost and schedule problems – although of a larger magnitude – led President Obama to cancel SLS's predecessor rocket system called Constellation shortly after taking office." The current $12 billion estimate is for the program's cost to achieve one unmanned launch. That's four times what it is costing NASA to get SpaceX, Boeing, and Sierra Nevada to build their three spaceships, all scheduled for their first manned launches before 2017.