Well we can’t use any google data as a source for commits on OSM so it doesn’t really matter what google earth shows. We can only use survey, local knowledge (essentially mapping what you have seen with your own two eyes) and what is available in iD and other editors and any databases that are licensed with a license that is compliant with with OSM’s license or the owner of the data source has given us (the OSM community) the explicit right to use that data for commits to OSM. Google doesn't fit any of those criteria.