Well, IF the report is true, and IF there was anything there, and IF it actually was ISIS and not the Baathist militia or a Sunni militia group (which is frankly more likely), then yeah.
Could somebody hop on the air travel websites and check what the last reported flight arrival in Baghdad was? There’s discussion about the “massive ISIS attack on the airport” actually being four mortar rounds that were lobbed in from a nearby neighborhood and caused a brief disruption, but flights have resumed. It’d be nice to find some actual data. It’s 3:40 am in Baghdad.