On page: https://www.freebsd.org/doc/en/books/handbook/zfs-zfs.html
I think the line:
Snapshots are not mounted directly, so path is shown in the MOUNTPOINT column.
is supposed to say:
Snapshots are not mounted directly, so no path is shown in the MOUNTPOINT column.
A commit references this bug:
Date: Sat Nov 30 00:02:19 UTC 2019
New revision: 53643
Opposite is true about the MOUNTPOINT column regarding snapshots.
Reported by: Ketan <mc at cookieoverflow com>
Committed, thanks for the bug report :)