Yet the coalition of 3400 architects and engineers still do not have computer inputs of NIST's mathematical models used for simulating how the buildings were destroyed. As per NIST: "This information was exempt from public disclosure under Section 7d of the National Construction Safety Team Act because it was determined by the Director of NIST that release of the files might jeopardize public safety."
It isn't odd to think that some of the wilder conspiracy theories on this, and other subjects, are seeded precisely to be such bullshit as to tar any discussion of the issue.
Plus the ever present rampant hucksterism that will say anything to sell stuff.
Two planes are hijacked and then rammed into two of the tallest buildings in the world. Both buildings collapse, while causing another 3rd building to collapse as well. I'm not sure how a mathematical model would help/teach the terrorist any more than the already available public videos of the attacks.
It sounds unlikely to me that some terrorists have figured out a secret way to collapse skyscrapers with an airliner that architects and engineers haven't figured out already and which wouldn't be part of the curriculum of becoming an architect or engineer in the first place.
BLS estimates several hundred thousand in directly overlapping professions in the US. I suspect a good number of these 3400 are people who are not even aware their name is being used for this cause.
References: 1. https://www.nist.gov/blogs/taking-measure/20-years-later-nis... 2. https://www.youtube.com/watch?v=iiwpj7aa9c8