No, that hasn't been shown. What AE911T claims could not occur is the girder walk off as described by NIST. Certainly everything required to analyze that specific issue IS available to any qualified person.External peer review was not conducted on the NIST "model" as critical data was withheld from independent experts under the terms of the NCST Act 2002 (using the absurd argument that it would "jeopardize public safety" if independent structural engineers are allowed to check NIST's conclusions); however analysis has been made of NIST's model and with the inclusion of critical elements that NIST omitted it has been shown that column 79 could not trigger the collapse, a conclusion discussed elsewhere in this forum.
AFASIK the data being withheld is for the FEA of the collapse progression. There were two done, the first has WTC7 in pristine condition and then column 79 is failed, the second includes the observed south side structural damage.