Not to diminish the atrocity of what happened to Aaron, but is this a highly abnormal case of prosecutor overzeal or is it common for people to be charged and held liable for downloading and/or consuming (without distribution) of copyrighted materials (in any form) without obtaining a license?

Asking because I genuinely don't know. I believe all I've ever read about persecution of "commonplace" copyright violations was either about distributors or tied to bidirectional nature of peer-to-peer exchange (torrents typically upload to others even as you download = redistribution).