If so, I think that's strange. Why would that bother you? They're giving you an idea of what their comment will be like up front to help you understand it more easily.
If not, they why does it bother you when they say essentially the same thing with four fewer words?
It's totally fine to be annoyed by a comment that doesn't add anything or is immature, but that's what you should be annoyed by, not the fact that they happened to use a particular phrase that concisely states a summary of their opinion.