– ” the UAF report demonstrates why it <i>couldn’t</i> have been progressive collapse”
The UAF report couldn’t possibly do that, because all they have to work from are WTC7’s design documents. The wreckage was disposed of years ago; components could have been beneath specification, wrongly fitted, or even omitted entirely during construction, but we have no way to know. I’m not discounting the report as useless, but it seems extremely unlikely that it can conclusively prove much beyond NIST’s report being wrong, and Chandler already did that.
If you’re really that interested in WTC7 for its own sake, there are two other major engineering investigations that were done for a court case and its appeal. You’ll probably need to read them anyway, because the earlier UAF work made extensive reference to them.