This is all in stark contrast to services like HBO Max and Disney+ which still stutter and crash multiple times a day. Amazon for some reason treats every season of a TV show and HD/SD versions of movies as independent items in their library. I still haven't been able to download a HBO Max video for offline viewing on iOS without the app crashing on me at 99%.
The problems you mention with Netflix are real, but they have more to do with the business side of things. Netflix recommendations seem crap because they don't have a lot of third party content to recommend in the first place. Their front page layout is optimized to maximize repetition and make their library seem larger. They steer viewers to their own shows because that's what the business team wants. None of these are problems you can fix by reassigning engineers.