This isn’t steganography, man. Lindell produces files from somewhere (unspecified) of some (unspecified) nature and without explanation makes a claim that they

This isn’t steganography, man. Lindell produces files from somewhere (unspecified) of some (unspecified) nature and without explanation makes a claim that they show evidence of crime X. The goal in this situation cannot be to prove that there is no data here related to crime X. That would be equivalent to proving that a seemingly random string of bits cannot possibly encode a secret message. The goal is to show that it is implausible that the files could represent evidence of crime X, given the circumstances in which the data was encountered. Not only did the author accomplish this, but the real telling point is that, with five million dollars at stake, Lindell could produce no substantial rebuttal from any of those 50 other hackers, nor any other expert who could say words to the effect that “this is PCAP data even though it is in a format never before associated with PCAPs” or “the reason the data appears to be recently created is [plausible explanation X]”