DRM in HTML5 is a victory for the open Web, not a defeat
The EFF argues that EME runs counter to the philosophy that "the Web needs to be a universal ecosystem that is based on open standards and fully implementable on equal terms by anyone, anywhere, without permission or negotiation." EME undermines the Web's compatibility, by allowing sites to demand "specific proprietary third-party software or even special hardware and particular operating systems."
Further, the groups argue that the Web is moving away from proprietary, DRM-capable plugins. The EFF writes that "HTML5 was supposed to be better than Flash, and excluding DRM is exactly what would make it better," and the petition claims that "Flash and Silverlight are finally dying off."