This is the diagram from the Facilities Directory, not the certified FAA Diagram Database. FAA Diagrams are surveyed and show the alphanumerics of the parrallel taxiways, cutoffs and etc. They are surveyed to scale and are not just for reference like what you are seeing for many of the facilities directory. There I don't show EWK to have a scale Airport Diagram in the database. They don't have a defined criteria, but most of the "Controlled" and "Charter Traffic Heavy" airports have them.
KMOS is the same story, there is not scaled FAA diagram for this airport. I hope this helps.