I don't like how many podcast are doing video. Not just because I like listening more than watching (unless video actually adds something concrete). The real problem isn't the video part. It is the #YouTube (and to a lesser extent #Spotify) part.
I don't like podcasts becoming dependent on these corporations. They might experience a level of success in the short term but I think many of them will find out how precarious it is to rely on being featured prominently by those platforms instead of having real subscribers.
Advice for podcasters pivoting to video:
Remember that your podcast feed is still important. Use it. Add a link to the video for each episode, then encourage viewers to use the feed to keep up to date on your videos.