No we don't have a changeable date that shows on the video player page in SharePoint either. You can make your own custom Metadata but that is just in the document library.
Any other people think we need a changeable date like "display date" directly on a video? We'd show that on the player page instead of the upload date if you set it.
Someone want to add it in ideas and add your votes?
Https://aka.ms/streamideas