If you're going to make such a strong statement, it would make sense to at least put out a tl;dr; of your argument. Otherwise, your comment just functions as an advertisement for your blog post. (I'm sure that wasn't your intention).
I take his link less as a blog-advertisement, and more of a "I'm more likely to update that than edit my comment on HN". I'd love it if, after he writes his blog post, he were to summarize it in an edit to his HN comment.
But stating that Sam was "completely and utterly wrong" isn't constructive and doesn't advance any argument.