Maybe I don't understand the culture here on HN, but not every response to a comment has to be a disagreement. Sometimes you're just adding to a point somebody else made.
In this case though the comment starts with a categorical negation of something that was said in a tongue-in-cheek way in the comment being replied to. It suggests a counterpoint is made. Yet it’s not.
Actually you're wrong because <argument on semantics> when in reality the truth is <minor technicality>.