I would encourage that completely! I always watch YouTube videos via a proxy, an app that retrieves the videos for me, so to watch privately, without ads and tracking. But YouTube is actively blocking this. So it's really challenging to watch YouTube without YouTube.
Rumble is a great alternative, but very few double post their videos. Although you don't know how Rumble will behave itself in the future.
Posting videos on Nostr would bring high quality video content to Nostr :-)