Changeset 129,308,761 merges the stray “Red Hook Recreational Area” node into the main “Red Hook Park” multipolygon relation. Meanwhile, on Wikidata, Red Hook Recreational Area (Q34855962) has been merged into Red Hook Park (Q7304317). Apparently the duplication happened because the English Wikipedia calls it by its common name while GNIS calls it by its official name.
Incidentally, Q34855948 has been unmerged from Q7304317 and renamed from “Red Hook Park” to “Coffey Park”. Apparently the Cebuano Wikipedia also imported parks from GeoNames, which continues to call this park by the wrong name. The same changeset tags Coffey Park with the newly unconflated item. The Cebuano Wikipedia article has also been renamed.