Caveat, no 748 time, but. . . judging by the excess climb performance they appeared to have available to them, I don't see that any Boeings were likely to be harmed in this performance.
If they weren't management, I hope their management are more open minded than the Freemasons from Cathay. I understand the "lodge" didn't like this (probably jealous because any "skills" they once possessed were 3 squadrons ago )
https://www.youtube.com/watch?v=b1ijLu2HzvI