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: Author: sevan Date: Sat Nov 30 00:02:19 UTC 2019 New revision: 53643 URL: https://svnweb.freebsd.org/changeset/doc/53643 Log: Opposite is true about the MOUNTPOINT column regarding snapshots. PR: 241945 Reported by: Ketan <mc at cookieoverflow com> Changes: head/en_US.ISO8859-1/books/handbook/zfs/chapter.xml
Committed, thanks for the bug report :)