The whole point of the story is how irrelevant the abrupt remark was in the broader context of the higher purpose they were both trying to achieve. Why did he r

The whole point of the story is how irrelevant the abrupt remark was in the broader context of the higher purpose they were both trying to achieve. Why did he react that way? Maybe he is a jerk. Maybe he had a bad day. Maybe he was frustrated because the paper was truly terrible. We don't know, and it doesn't matter. What matters is the end product accomplished the higher goal that they both wanted.