The OSM road hierarchy being broad  and vague compared to functional class definitions is exactly why this needs to be a team effort based on the bias and consensus among multiple mappers. Please realize that going out and changing everything to fit 1:1 with a government map is still "the opinions of an insignificant mapper". It was your decision to move ahead with these large, rapid changes twice without prior discussion, notice, or explanation. OSM is separate project from the Maine DOT. If we copied other free maps, OSM would not need to exist.