Well obviously it's because:
Need some help here Tim! I can't fanboy this hard on my own 😓
You can't play 4K content on Apple TV 4K gen 1You can't play 60 fps video on Apple TV 4K gen 1You can't play modern codecs on Apple TV 4K gen 1 (oh wait, you can prerender/transcode it in any that you need)You can't play HDR content on Apple TV 4K gen 1 (oh wait, again with the damn prerender/transcoding)
"You aren't entitled to new screensavers! It still does everything it did when you bought it! What are you whining about?!"
There we go. Someone seriously always turns up to say these things like it's some kind of excuse and this giant corporation needs defending for their blatantly insulting decisions.