Agreed that the bad image quality won't help us, but I don't think arguing the machines can save images is a bad thing. That fact has popped up in countless news articles this week alone.
Frankly, I think the onus is on TSA to prove that the machines have been disabled. According to
the manufacturer* of the machines that made/saved the courthouse pictures, they come standard with USB and Ethernet ports.
(*You want the 'Gen 2 Product Sheet' link.)