You've said "re-add vaguer protected area boundary" - can you explain what boundary you "re-added"?  The tagging changes can be seen at https://osm.mapki.com/history/way/1270661319 .  Are you sure that a local authority country park really meets the criteria set out at https://wiki.openstreetmap.org/wiki/Tag:protect%20class=2?uselang=en-GB ?