I agree if you’re already using Spotify to listen to podcasts. But if you’re not, you’d definitely notice a move to Spotify Exclusive because you’d need to have two podcast apps.
Plus your experience would degrade substantially, since before, you could have a music play queue for times you want to listen to music, and a podcast play queue for times you want to listen to podcasts. Now you'd have to manually push things in and out of a single play queue.