It seems that iNaturalist is using Ianthocincla for many species that may actually have a valid place in Pterorhinus, and perhaps if iNaturalist starts accepting IOC as a valid taxonomic backbone then the family Leiothrichidae can be defined to a more granular level:
https://www.worldbirdnames.org/bow/laughingthrushes/

For now, however, this taxon should be made inactive, as its parent taxon is already inactive.