Saw it as well and posted in the structural engineering forum... it is amazing how nature can overcome men efforts.
It always makes me remember the last joke in a comic book of the seventies'
Et voilá le travail!
by french author Hubuc
Maybe was his last work, was dying of cancer at the time
A great number of workers come of finishing a deep cylindrical excavation, sweating, and the boss saying
Enfin, une chose bien faite! (Hummm, A fine work!)
and a huge asteroid is falling vertically upon the hole.