Except the data *was* incorrect. Information added with lane tags isn't just for routing purposes; it should also accurately reflect the road as it exists in reality. This changeset implied the existence of an eastbound turn lane shorter than the length of a car, when it really extends much further than that. Whether or not this is part of your internal mapping standards is irrelevant. You supplied incomplete data within the scope of your edit, and as a result other mappers have to correct the work that you didn't do. 