@grvsmth @bedast it's certainly a tricky one. I would go further and say people with hearing loss, particularly those who can't lip read (me), find them more than just useful.
Their accuracy is definitely a problem to be solved, so having it as a plugin is a good compromise as long as people know that. On the other hand it's VLC, so you're getting a pretty amazing piece of software for free, and this is coming from a good place, not trying to inflate stock price with a fad.
Certainly not something to rely on if you're producing videos professionally, but I can also see e.g. a solo YouTuber won't have time to transcribe all their videos.