Feb 17 was al Qaeda affiliated?? This I did not know. The Americans were told to “rely” on Feb 17 for everything - the gate guards, their own security, their backup. The operators whose story is told in 13 Hrs most definitely did NOT trust Feb 17 but were told by their bosses they had to.
Right after the attack, they put up on their website the Al-Qeada banner.
But yeah, there was reason the attackers knew where everything was.