Any idea why they would want to kill your notes app? There are already a bunch out there and Notes has been around forever.
I don't think they have to want to do anything. This is just the reality of a faceless bureaucracy which isn't accountable to anyone or anything. To the dev, their app is their livelihood— to Apple, it's just a ticket in a queue somewhere.
Companies exploit this for profit in many unethical ways. For instance Apple didn't voluntarily print new marketing material for the EU they advertised a one year warranty illegally instead to upsell Apple Care and went to court multiple times for it. Steam had to be sued to provide refunds. Google had to be sued to refund $75 million in funds they claimed they were returning because of fraud.
Business as usual is basically a dark pattern - do whatever they want because it will take years if ever for anyone to challenge them meanwhile there is zero oversight.
https://apple.slashdot.org/story/12/04/02/123207/apple-is-fo...
https://variety.com/2018/gaming/news/valve-australia-fine-12...
https://www.wsj.com/articles/google-to-refund-advertisers-af...