@Nathan Willis Some resources and points though:

• https://www.defectivebydesign.org/from-the-web-to-the-streets-protesting-drm
• https://media.libreplanet.org/u/zakkai/tag/no-drm-in-web-standards/
• I was one of the people who gave a speech at the DRM rally. I have notes from my speech, though not the excact speech itself (someone did record it though, again, maybe the FSF knows). I could give you a reconstructed version if that's interesting. ("We must not let the W3C become an enemy of itself" seemed to be the line that people liked.)
• Harry Halpin moderated the panel. He made clear that he was acting in his own capacity, and not that of a W3C employee, by doing so. But he did say something interesting, closing off the panel... as a quasiquote: "There are some lines that must not be crossed. Thus, if the W3C adopts EME, I will resign."