I'm not sure why this particular one seems to be causing an issue compared to all the others so i'll go through it in JOSM and try see what is causing it, as for discussion around it refer to this similar fourm post https://community.openstreetmap.org/t/clarification-of-footway-area-mapping/130974/16 and this discussion on this changeset https://www.openstreetmap.org/changeset/166883890#map=18/40.691542/-74.015139