For Russia it is not necessary to specify addr:city=Moscow. The community decided that it will use the abbreviated scheme. It is assumed that addr:city, etc, is taken from the city polygon.
It is good that you added it, but it is not a requirement.

About edit comments. You're right, but adding unique comments to a large number of similar edits is difficult and doesn't make sense, because we tend to fix wrong addresses. If the task is different from this one, I make a unique comment.

Thank you for being a bug checker.
