User blog comment:Kogath/Monster Hunter: World Discussion/@comment-26421638-20191031102905/@comment-4370375-20191101203409

I suspect it's in reference to the fact the Yian Garuga were scarred by default in Freedom and weren't recognized as a variant until Iceborne.

The video also confirms that the catfish from Tri were in fact Gajau as it uses the Japanese name for it. ガライーバ