I'm pretty sure designing with the expectation that people might try to drive a truck/plane into the building is pretty normal for data center design. People have been aware of destructive people for a while.
I worked for a defense contractor in the early 1980s.
I think it was 1983, just after I started there, that an edict came down to "truck-proof" the building. If I remember, 1983 was when Hammas blew up the US embassy in Beirut with a truck bomb.
They put up those "anti-truck" columns in front of the doors.
No doubt, but it's probably emotionally easier to work with that knowledge and attempt at foresight in the abstract, than how it would feel to receive a letter from your employer saying something akin to "brace yourselves".