Well, I would agree to this particularly because you are saying this, since you don’t write something that is not understandable.
Some people (maybe whose native language is not english) write a lot of grammar errors making it difficult to understand what they mean.
Maybe that is why we also have Grammarly mandatory in our publication.
However, I never felt you need it, as you are good with your work. Even I do not incorporate every grammarly suggestion, just the ones that makes sense.