With a long password, IF the directory isn't an attractive target for attackers,
such as your member's area or certain admin areas. However, as maxprohost
mentioned, I'd also suggest using strong encryption rather than the default
1974 style. You can use this free online tool to do the strong encryption:
https://www.bettercgi.com/strongbox/admin_pass.html
Just copy and paste the output of that tool in your .htpasswd file which cpanel
will generate for you, replacing the line created by cpanel.