Do you normally assume that if someone shows any emotion that that emotion is "get[ting] in the way"? People's emotions are influenced by real things, and they don't have to speak dispassionately about those things. Especially when the blog post is entitled "My Thoughts on ---".

I don't know what you're getting at with your final paragraph, I feel like he's in a pretty good position to assert something he probably did or did not do.