I think most would agree, but this idea is not always welcome in the classroom. There is definitely a measurable amount of learning to be done in courses that present language as a set of rules because once a student understands the structure they can treat speaking or writing as an equation. The problem arises when those students enter the real world and experience the natural way people speak. Workers communicate in rigorous, controlled ways in many places, such as hospitals or business offices, but people communicate through stories that don't always follow the rules. Reality needs people who can understand and respond with similar experiences. Once they feel comfortable, they can continue learning because the rules dictate that certain punctuation signals a pause or the end of a sentence.