You're right, uplink is pretty much useless if you're only consuming Netflix. I guess I'm still infected by 90s-era ideals about the internet being a place for the free exchange of information, where any tech-savvy person should be able to run their own server, etc, etc. I'd at least like to be able to upload photos of my son without my connection slowing to a crawl.
How much uplink do you need to send enough ACK packets for a HD stream?