I find this kind of critizism to be unfounded as it seems the author have not actually used the feature but is just complaining about it.
This is how it is used, and as you see there is no preference for "the broken US practice of illogical month/day ordering":
n := time.Now()
localTimeFormat := "2006-01-02 15:04:05"
formatted := n.Format(localTimeFormat)