Trying to find any information on the hibagon in English is nearly impossible. My Japanese isn't up to par, so searching that was is just as tricky. I've been told that it has other names and legends of the creature go even further back.
I was told about a creature that met the criteria for a Sasquatch and Higbagon like creature known as ''Satori'' (さとり). The description and even the characteristics match. I've read many encounters people have with Sasquatch and they feel almost mesmerized by the beast. They never felt fear and instead felt a connection with the creature.
Personally, I really don't like to go down the road into 'tabloid' weird and hear stories about people saying how bigfoot is a transdimensional being. It really grinds my gears. But to hear that there are similar stories all the way from Japan, is somewhat fascinating.