Very weird. Seems possible that some clueless higher-up found out about it at the last minute and said "don't you dare let this happen," some middle manager tried to stop it, failed, panicked, and threw Schwartz and Cramb under the bus to evade blame. Could also be office politics bullshit; a high-up was gunning for them with no real justification and ginned up a smokescreen to fire them.
Either way, "director of offensive security" is a pretty hefty-sounding title to fire off-the-cuff like an incompetent intern.