Here's where I stopped reading.
Edit: what I mean to say is that the author is correct that there was a lot of baseless Ruby fanboyism.
Short answer: because life's too short to read an essay about software licensing that appears to be shot through with commentary about the failings of the Ruby/Rails community. Am I wrong, and there was no RoR commentary after that graf? Oh well.
Also, your response to my comment doesn't improve or change my opinion of the article. Without that part there, it would've been a perfectly acceptable advance of the discussion of the two license systems. As it is, it damages the your argument.
Bitter maybe too harsh a criticism, but since you've chosen to put the irrelevant paragraph that made a side-comment on the Ruby community in an article about OSS licenses, you've pretty much opened yourself up to it.