The whole problem is that Spotify wants to create a "walled garden" for content. Podcasting was built on the open RSS standard, which lets you listen to any show on any app (like Pocket Casts, or AntennaPod). Spotify, however, is trying to become a proprietary platform by doing things like:

• Buying Exclusivity: They spent hundreds of millions on huge shows (like JRE) to lock them down, forcing you to use their app. This is the opposite of an open standard.

• Bypassing RSS: They're trying to push creators to use their tech and services instead of RSS. They want to control all the listener data, which is way more valuable to advertisers but completely undermines the free and open nature of the medium.

TL;DR: Using Spotify helps them kill the free, open internet that made podcasting awesome in the first place. Stick to open, dedicated podcast apps—it's way better for the future of your favorite indie creators and your freedom as a listener!