I was talking about the concept of deployment in general. Yes, of course it's usually staggered for monorepos. I don't know why you're arguing about saying there's "no such thing as when" and then immediately point out a case of "when" immediately following. (And turning off services for 15 minutes at 2 am is definitely still a thing.)
And I'm not missing any part of the article. I was talking about your comment, and the fact that you are conflating two different things. A monorepo allows you to make atomic commits that a polyrepo does not, full stop. There's no trap there. Deployment is separate. You have to worry about breaking changes regardless of it being a polyrepo or monorepo. But a monorepo can make each atomic change far easier to track and manage and reason about.
And I'm not missing any part of the article. I was talking about your comment, and the fact that you are conflating two different things. A monorepo allows you to make atomic commits that a polyrepo does not, full stop. There's no trap there. Deployment is separate. You have to worry about breaking changes regardless of it being a polyrepo or monorepo. But a monorepo can make each atomic change far easier to track and manage and reason about.