Is considerate also boring?
Yes, actually. The best characters are egotistical, jerks who have a strong personality: Sherlock Holmes, Dr. Who, Mr. Spock, etc.
Besides, Archer isn't typically this puffed up. He didn't like hearing he was wrong, so acted more wrong. Not very mature.
Within 24 hours, he figured out how immature he was being and straightened up his act, apologizing to everyone. I'm still not sure how one bad day manages to make Archer inconsiderate, especially after he's apologized (and humiliated for it).