Yeah, it's complicated. I don't agree with the interpretation of as a small-scale timing function, either. Partially this type of attitude seems to be related to parenting i.e. if your parents trained you to be a timely person, then you're likely going to pick up this trait. Although the least timely person I know is an ESFp, whose ENFj-ISTj parents are extremely punctual. So perhaps my theory is bollocks, who knows.