Or not. The data are
available, but they weren't archived using the process he designed. He may very well have valid complaints on inadequacies in the the data archiving process or its implementation, as that is his expertise (though for some unstated reason he repeatedly complains that ASCII tables on an FTP site aren't "digital" or "machine-readable"), but there's no evidence for his claims that the study was rushed or the data corrupted.
I can certainly sympathize with his frustration over producing an archiving regimen that isn't followed. I think that's a common issue on any large organization.