I wish RSS discovery were better. I got so angry one time when I left my prepaid mobile data on and accidentally downloaded 12 of the same introductory episode because I had auto-download turned on and Wondery podcast network put out a preview on all 12 feeds I was subscribed to of theirs.
It frustrated me enough to look at ways I could support RSS and introduce a new means of discovery, but as it turns out, RSS is a finished spec and the authors requested that any changes to the spec happen under a new protocol and a new name. I ended up creating a new feed spec I've been cobbling together that supports better discovery. Check it out, https://readme.loud.so/
the TL;DR is that feeds can be treated as a show feed with a singular show, or as a network feed with multiple shows, allowing for a feed player consuming the new feed to provide UI elements that let a user select which of the network's shows they'd like to subscribe to, as well as a means to prompt the user when a new show is added to the network feed.
Also big shouts out to the podcast2.0 community who has been very welcoming along the way, they are doing great things within the confines of RSS as it stands.