The misunderstandings are unfortunate, but some people do speak and write in such a manner as to give the impression that their way is the only correct way.
My IH is good at that. He was a project engineer/manager and he pontificates like his word is law. I've called him out a couple of times, and he swears that what he actually meant didn't sound like I thought it did. But as far as I'm concerned, it still sounded bossy. BTW - he writes in the same manner.