Fortunately it mentions early on in the article that this is related to an Olympus camera so I'm guessing this has something to do with the OM system's flavor of Olympus's proprietary ORF format.
This would not surprise me. For whatever reason, ORF files from the TG-4 import fine, but CoreRAW doesn't handle the TG-6, so I need to either use RAW+JPEG or convert to DNG.