On Obama's Claim that General Flynn Had Committed an Act of Perjury

The guy was a constitutional law professor at the University of Chicago (one of the top 10 law programs in the country) and he doesn't know the difference between perjury and providing false statements to the F.B.I. (and Flynn didn't even do that according to the agents who interviewed him)? Kinda' seems like it, huh (the only other explanation being that he's trying to play us)?