As some of the comments mention, the download button is an issue for sites that are using third party content which they have permission to use, but not to allo

As some of the comments mention, the download button is an issue for sites that are using third party content which they have permission to use, but not to allow users to redistribute. Unlike browser extensions or even right-clicking on the video, a download button implies that users have permission to download the video, and arguably even to share it, which could get the site owners into trouble unless they develop custom controls to remove the download button.