When Docker was new I had a really bad ADSL connection (2Mbps) and couldn't ever stack up a containerized system properly because Dockerhub would time out.

I did large downloads all the time, I used to download 25GB games for my game consoles for instance. I just had to use schedule them and use tools that could resume downloads.

If I'd had a local docker hub I might have used docker but because I didn't it was dead to me.