I think it'd be a bit different if Kindle, Spotify, Netflix and co. all suddenly stopped working/got worse.

And if Apple yoinks them out, then why should the developer respect the "no disparagement" or "no telling your customers about payment/alternatives"? Which to me was always the ultimate expression of Apple absolutely knowing they are being greedy. Not just "You can't tell your customers you can pay less elsewhere", but "You can't even tell your customers about our involvement in your pricing decisions".