That's also what I thought as a Vim user before I had access to Kakoune's multiline editing. It changed my mind and might change yours too if you give it a chance
There are only 2 usecases where it was of any value to me: If I have to write multiple lines in a similar fashion, or if I have to edit the same thing in a similar fashion in several places at once.
Both can be done much easier by using a regular expression.