Dersh argues many things confidently and aggressively that seem perhaps facially convincing. Or perhaps you simply don't have time or the presence of mind to present a counterargument in the moment. That's his "strength" as a lawyer. Don't believe any claim until you see the underlying exculpatory evidence, which only he claims exists and only he claims is exculpatory. In this case, he presents none of the evidence. Not one single piece of it. He only presents what the response of others was upon seeing it. He can pull this gag on the general public, but in a court one requires discovery.