I'd argue that continuous integration is great, but continuous deployment might not be. Real customers don't need to be aware of the continuous integration, so

I'd argue that continuous integration is great, but continuous deployment might not be. Real customers don't need to be aware of the continuous integration, so it just keeps things (mostly) working without disrupting users. Whereas continuous deployment (to production) means they get surprise changes all the time and can't schedule things around disruption.