I’m not using this extension, but using the Sketchup UI, it will give a new unique name when you add new scene, and you are not allowed to re-name the scene same as the existing one.
However Ruby API allows to create this duplicate names. I guess Curic SM (or other extension?) creating this duplicates - as your screenshot shows, and this may handled properly within that extension.
However the users who get this model and doesn’t use this extension, could be confused (see above), or user using other extension dealing with scenes can get an unexpected result, because of duplicated names of scenes is not an expected behaviour. (Normally the extension creator should handle this API behaviour properly.)
For example: Perhaps this topic can be related…