It's already a thing : podsync {dot} net
1) My service is 100% free. Don't have to by my patron on patreon to unlock any features ;)
2) You can specify ANY videos (one-by-one) that You want to watch, not whole channel, or playlist
3) You can edit Your podcast later and add additional movies to it
So it's +/- same, but there are differences. You have to chose one, based on your needs (and budget sometimes).