block, interfere with, discriminate against, impair, or degrade access to any lawful content from any lawful application or device
RTFA. The fact that it's a legitimate protocol doesn't change the legality of the content. Using your logic, pirated movies are illegal content, but they are sent via a "legitimate" protocol.
Debate the article's position and take off your tinfoil hat regarding Microsoft's intentions. While many readers, myself included, do not trust Microsoft's intentions, I would rather argue the points raised in the article.
Did you even RTFA?
The main point the man made was simple. Contributions to a standard may be patent protected, but not within the scope of the standard. Companies and individuals would be able to use the standard and the patented items therein as long as they are using the patented items within the scope of the standard.
Read his analogy about the hypothetical patented aphrodesiac that was a good fit for a particular standard.
While I doubt that he is entirely forthcoming about Microsoft's intentions, he makes a good point.
The one day you'd sell your soul for something, souls are a glut.