It's not that nobody cares; they're just less important. Obvious example is analytics. It helps Netflix deliver a better experience to their users, (video watchers and product placement advertisers -- whoever) but it isn't mission critical to making sure users can watch their content. If you miss some log data, that's not a huge deal. That doesn't mean you want to stop logging.

Some of the things they mentioned were also user impacting, like not being able to select a video's language, but less critical. You obviously still want that feature, but it's less important than being able to watch at all.

That's like saying "if you can drive a car without an air-conditioner, why even bother installing an air-conditioner?"

"unimpacted" isnt the case - it makes clear that some traffic is more critical-path than others and thus the prioritization.

"Clearly nobody cares about" - what? The whole point here is "people care most about video streaming" and less about the metadata etc that they lower in priority.

Great idea! Drop add to list, the searchbar and streaming audio in a different language! Noone cares about any of that stuff