Some will tell you that Mozilla's worst decision was to accept funding from Google, and that may have been the first domino, but I hold that implementing DRM is what doomed them, as it led to their culture of capitulation. It demonstrated that their decisions were the decisions of a company shipping...
Is turning off DRM not an option for you? It is for me. That option has been there since the DRM inclusion right there in the Preferences, no about:config baloney. Now if the option wasn't included, I'd think I'd be more inclined to agree.
Points subtracted for presenting DRM as the unnecessarily unsavory and dramatic "kitten-meat deli."
Based on the content of that article, the problem is not that DRM is currently in Firefox, but the process by which DRM became mandatory in browsers to begin with.