The Encrypted Media Extensions (EME, a.k.a. DRM in HTML5)
specification is not a real DRM itself. It provides for add-on parts
described as Content Decryption Modules that provide DRM functionality
for one or more Key Systems. DRMs are obviously designed to be
non-interoperable, and EME is a standard for managing such
non-standard stuff. That is going to break interoperability, as any
given browser will inevitably miss some decryption modules.
Internet, globalization, and the information age may well entail a
change in the basic principles of economics. However, IMHO, DRM is
not a solution to copyright infringement, not more than postage is a
solution to spam. Injecting DRM through EME is a disservice to web
standardization, since the latter is supposed to foster the Internet
revolution.
If you haven't done so already, please sign the FSF petition:
http://www.defectivebydesign.org/no-drm-in-html5
Thank you