I still don't understand. If people like a background noise while sleeping, they will keep having one, be it chill / lounge / etc ... Music. The issue will remain the same.
but if all the "podcaster" is contributing is white noise, spotify can provide that without paying a "podcaster" anything so as a business it makes no sense to allow it to continue. If you have multiple "podcasters" earning 5 figure monthly off of white noise why pay them if you don't have to?