I've been on the internet for a long time and I've seen these kind of complaints in all kind of forms. Comments, forum posts, blog posts, video, podcast. Each time a UI gets updated, people start to write melodramatic pieces about how this ruins it forever and it's the point of no return for the platform.
I've heard it when facebook abandoned this UI (https://beta.techcrunch.com/wp-content/uploads/2011/02/fbpag...), when youtube changed this homepage (https://www.versionmuseum.com/images/websites/youtube-websit...) and so on. You get the point. When a UI change happens it feels strange, but in hindsight they were right to do it.
Designers are not fools, if they are working on a good team (like at Apple) they don't take decisions on a whim. They prototype, they do user testing, the validate ideas and scrap others considering many many many different factors. If you see a design decision, it has been carefully thought out from different perspectives. This assuming that there are actual design team with enough resources behind, which is Apple case.
Whatever criticism you have for any design, they have thought about it at least 10 months ago. They know about it and took a decision balancing other 100 aspects and considerations that you are not even aware about.