I think you linked to the wrong document, unless you're taking "Epstein had over ten thousand pornographic videos and images" as "there were over one thousand minor victims" which doesn't follow as a logical conclusion.
> The files relating to Epstein include a large volume of images of Epstein, images and videos of victims who are either minors or appear to be minors
> Consistent with prior disclosures, this review confirmed that Epstein harmed over one thousand victims. Each suffered unique trauma. Sensitive information relating to these victims is intertwined throughout the materials.
The second quote doesn’t explicitly say “minor victims”, but the whole document is focused on that, mentioning that “One of our highest priorities is combatting child exploitation and bringing justice to victims.”