The line I called out was about "valuing relationships", which is both viscerally offensive to me and has no defensibly true meaning. It is like saying whites love their kids more than blacks do. It is too poorly constructed to even be wrong.
Sometimes I am really disappointed in HN's vote quality. This comment was downvoted to 0, even though it is a perceptive call on a not very rational habit. Yet, your grandparent comment was a blanket attack, unclear and probably much wider then you intended... and it's at score 7.
If you don't believe there are differences in punctuality between cultures then you just haven't experienced those cultures.