If it was true that some discontented elements of Satsuma or Choshu were involved such as the disaster of Masujiro OMURA, it would have been revealed spontaneously and prosecuted.
仮に、大村益次郎の遭難同様に薩摩や長州の不平分子が関与していたというのであれば、政府内部で自然に露見し追求されるはずである。