When you have an OS that updates out from under you, takes 45 minutes to shutdown or start up, shuts down without your control etc. it's no wonder people want more control over their updates.
In my experience of running windows 10 on a 7 year old laptop, you get a persistent status icon telling you updates are available. If you ignore that for a week you start getting intrusive notifications saying "your computer needs to restart, do it now?" and if you put that off for a few days you start getting a popup with the options "restart now?" and "ask me in 10 minutes".
If you put that off for long enough, it will restart the next time you close the lid.
I cannot imagine anyone going through all that and then going "wow I wasn't expecting an update!"
On top of that, it generally takes 5-10 minutes tops to actually do the update, more usually it's a standard restart that takes like 30s.
the only "45 minute" update I've had was one of the big service pack updates and that was opt-in with an up front warning.
These are pretty common complaints, servers, signs and many people get updates forced on them. Windows 10 was forced on many, many people. Just because you don't care doesn't mean lots of people haven't been burned.
