> (mostly, I've never had a download NOT work, on the rare occasion I grab one)

A lot of the reason for that is because yt-dlp explicitly makes it easy for you to update it, so I would imagine that many frontends will do so automatically - something which is becoming more necessary as time goes on, as YouTube and yt-dip play cat and mouse with each other.

Unfortunately, lately, yt-dip has had to disable by default the downloading of certain formats that it was formerly able to access by pretending to be the YouTube iOS client, because they were erroring too often. There are alternatives, of course, but those ones were pretty good.

A lot of what you see in yt-dlp is because of the immense amount of work that the developers put in in order to keep it working. Despite that it now allows for downloading from many more sites than it originally was developed for, they're still not going to give up YouTube support (as long as it still allows DRM-free versions) without a fight.

Once YouTube moves to completely DRM'd videos, however, that may have to be when yt-dlp retires support for YouTube, because yt-dlp very deliberately does not bypass DRM. I'd imagine the name would change at that point.