but you're the common denominator so its their fault, ok right
It's human to use our register of past experiences to foresee problems in the future. I'd rather put out a warning than waste time with someone who later hits the eject button based on something that was evident from the jump. In relationships of any sort, really, including business, it's reasonable to say "hey, just so there aren't any misunderstandings down the road, let's be clear on x,y,and z; otherwise, we're wasting our time and this probably isn't going to work."
To be fair, I do see how you could misinterpret this as blaming the other person; but an alternate take is that the person is brainstorming, after reading the article, that the other person was simply less adept at predicting behavior.