Sounds like the author is advocating for Chaos?
batching those things up seems like way to minimize context switching type activities.
How do you handle Continuous Deployment then? Only to Staging?
I'm not arguing against more flexibility when your in small team /pre or early release MVP stage(s)
Also, you need a "Hot Fix" short circuit process as well. Although you need to watch it and make sure management is on board with the idea that a reliable road map is important and specific criteria for urgency or everything turns into a "hot fix".
For an MVP you just do it with no code/google sheets/email what ever it takes to get something out the door.