Following this principle, there is no justification to make a change where you can't document why it is so. So the comments in the commit messages are an expla

Following this principle, there is no justification to make a change where you can't document why it is so. So the comments in the commit messages are an explanation / justification of changes, and they don’t replace code comments? That just seems like “how you’re supposed to do it” and wouldn’t address code comments not being revised when necessary.