It smelled like a dog but ten times worse

That is an interesting encounter, I think what those ladies did was really a big invasion of territory between entering the structure and peeing it's a bit challenging. Even if they are an opposite sex there may have been quite a bit going on perhaps family? I wonder if one had shorter hair or hair that was up so perhaps it could have been seen as another male. Doesn't seem that they seen much just harassed out of the area, oddly it could have been a lot worse there were some real mistakes made the hiding near a tree and daylight fading really lots of bad decision making and very little respect shown. From listening to the encounter it seems to be a frequent area of humans hiking or camping with a parking lot for visitors so if a BF is that close they know people and them will bump into one another, if it was predatory the nudging out of the territory wouldn't have happened.

There are normal and healthy responses to situations with animals, for example a lions (male and female) in a cage when an unfamiliar human is too close the aggression is immediate mostly from the male but if a person is at a comfortable distance away there is no reaction. Something unhealthy or concerning would be if one raised both the animals  and upon approaching there is aggression that is a scary situation of course if the animal is in good health (not in heat) and has had a good relationship with their owner. Although there maybe a fence that animal is beyond dangerous, it may sound odd but even apex predators know and trust their human caretaker thus generally friendly and or accepting of their interactions. Years ago we had a tigress she was pretty friendly in her first heat everything changed it went from being able to enter a cage and being considered a "safe" cat to interact with to if she saw anyone there was charging at full speed and doing a backflip off the fence while roaring. 

So for what occurred in that encounter I would say the BF acted in a rather healthy way, of course it's traumatic to those ladies but they are alive to tell the story.

Edit: On the topic of clothes it could be curiosity, people loose clothing all the time that said I wouldn't want to eat where I sleep or am based out of if I am trying to hide. Like I mention there are healthy and unhealthy reactions by animals (or people) when there is some level of stress. From listening to the video and what the witnesses said it seems they didn't see what was throwing the rocks. Can it be DM sure the behavior sounds very BF like. 

They never saw it. It wasn't bigfoot.

It smelled like WET DOG

It had claws and had marked the tree

It must have been a dogman

There are some reports of dogman throwing rocks at barns I maybe have heard two stories total where throwing was attributed scratching and gnawing of trees I have heard both do it. There is something I want to touch on primates do mark trees not widely known. It'd be kind of nice to have had pictures of the scratches, but then again these two seemed to really goof on every rule and come out alive.

www.scientificamerican.com/article/mysterious-chimpanzee-behavior-may-be-evidence-of-sacred-rituals/

I should say that often we see marking of trees or scratches for a few reasons depending on species like bears anything put vertical is actually a marking denoting territory, cats generally vertical also can denote size to others of the species. Both BF or DM have the required tooling to throw rocks and scratch trees, no matter which one did it, they were a well socialized individual.