That bird is the word.
I liked the article/blog entry, but I'm not sure how much I agree with the take on the isms. -- Because Firefly has its own irksome isms, as part of what makes people in the Verse so ornery and low-down mean sometimes...or noble and fine, others. One of the things about the Verse is that it's designed to give us room to have not-so-nice people and things in it, and to allow the writers to comment without preaching at us.
I agree though, that any of today's problem isms don't exist there, or they've changed into something else.
That not so neat and tidy quality appeals to me.