It really doesn't seem like you're listening. Windows Update is intrusive, opaque, and uncontrollable. WaaS is a nightmare for OEMs and IT administrators -- not to mention end users!
And WSUS is a confusing hot mess straight out of the early 2000s. I've had a ticket open with the MS Windows OEM team for 3 months, they're still trying to figure out how to get WSUS to update the embedded Windows appliance we make -- a direction we took after the May Windows cumulative update turned our appliances into expensive bricks:
https://answers.microsoft.com/en-us/windows/forum/windows_10-windows_install/devices-with-certain-intel-ssds-may-enter-a-uefi/703ab5d8-d93e-4321-b8cc-c70ce22ce2f1?auth=1
Instead of defending the state Windows is in, you should be acknowledging the problem, and engaging the community transparently on how to fix it. Susan Bradley articulated what your entire user base is experiencing. Brushing that off is a mistake.