Per the Access section, it seems that it's an unofficial but permissive single "cliff face" (excuse my technical ignorance). Perhaps it should instead be a node and [leisure=sport crag] replaced with [climbing=crag]?

https://taginfo.openstreetmap.org/tags/climbing=crag

This nearby node is the only other global use of  [leisure=sport crag] 

https://www.openstreetmap.org/node/1330511229