"And the strike was a glancing blow."

Glancing blow? Bullshit! Did it bounce off? NO! It penetrated the building and smashed down weight (force) carrying support structures.

Monocoque style construction (where all the stress is distributed thru all the much lighter construction mass) is incredibly weak once you break even a single load carrying beam. Stress other nearby integrally joined force carrying structures via heat weakening and KaBoom! You don;t even need 'red heat' - the expansion of a few will push others out of place , then let it cool and it won't go back to where it is supposed to (but it will then be in tension, where previoulsy it was designed to be in compression), but be even weaker...

Glancing blow!!! - Bullshit! you clearly are a lunatic manipulating delusions.