The idea is to offer the ability to make pages that are not crawled or searchable. They are unlisted / hidden. You can use this for pages you don’t want everyone to see.
Anyone else find this useful? I use unlisted content constantly for everything (video, photo, docs). Sometimes it’s to do reviews before making something public and live. Sometimes it’s so only some people can easily access content, but without having to go all out and make it completely gated and private.