LOL
Excuse me, but what's missing from those pictures? Can't tell....tens of thousands of tons of twist metal and rubble. Of course columns were cut, to allow heavy equipment in the area to clean up the mountain of debris Some of the columns jutting out of the ground were anchored by tens of feet of re-enforced concrete. Cutting them off close to the ground had to be done to allow for the cleanup.
Try using a little logic.