Hi,
https://www.openstreetmap.org/way/1184885634 looks more like a riding arena/ring than like a riding centre, but you have tagged it leisure=horse_riding which is for riding centres, compare https://wiki.openstreetmap.org/wiki/Tag%3Aleisure%3Dhorse_riding

Similar case: https://www.openstreetmap.org/way/791945243

In JOSM you can use the preset for sport=equestrian to tag riding arenas.