Rethugs aren’t interested in what the CIA was actually doing there, and they do not challenge the CIA on anything.
As for the well-equipped paramilitary operatives at the CIA station, according to their own statements, they were initially held back by the CIA station chief — as they had been in other incidents. And the station chief was, in turn, acting under his directive to let local militia groups respond. That practice was intended to maintain the station’s covert profile. Unfortunately, it was not consistent with providing any real time defense for the State Department compound.