As far as I can tell, the areas are not bounded by a way and just POIs at the moment:

https://www.openstreetmap.org/node/150958648 Boulevard park POI/hamlet

https://www.openstreetmap.org/node/150948501 southern heights poi/hamlet

Also need to take GNIS with a grain of salt, some GNIS locations are wrong too, so watch out for that.