Sharing and Embedding Videos for Entire Organization in Stream (on SharePoint)

Just following up on this. The solution that I eventually arrived at was to move the files to the document library of a public (within org) SharePoint site. Once I did that, people were able to view the videos via Stream. I still don't understand why we couldn't do this within the other site's library simply by manually setting the folder permissions to anyone in the org. That used to work, but maybe something changed so that now the permissions of the site overrides any manually set permissions within.