Which reminds me of my initial thoughts when I first watched the videos on 911. How does an aluminum can smash through steel and concrete? The wings should have sheared off in large chunks and debris should have been sliding down the side of the building including the epinage from the tail. There should have been massive parts of the plane in the street.
In WW11 when the B17 bomber hit the Empire State Building it was a much sturdier plane and it punched a hole in the building but the bulk of it landed in the street killing people. The Empire State building did not catch fire and it did not call down.
That’s all I’m gonna say about that.
Sorry but your facts are in error.
The only aircraft to crash into the Empire State Building was a B-25 bomber (a medium twin engine aircraft) that crashed into the 78th floor in July 1945 in fog and bad weather - see Wikipedia “Empire State Building Plane Crash”.
According to the same Wikipedia article there was another air plane crash into a New York City skyscraper on May 20, 1946 when a C-54F (a light twin engine transport) crashed into the 58th floor of 40 Wall Street at night and in bad (foggy) weather.
I suspect the difference in damages was due to the heavier weight of the aircrafts and the difference in building techniques.