First there is the better-odds-of-winning-the-lotto-while-being-struck-by-lightning factor. Since this film was made, there have literally been thousands and thousands of hours of would-be Bigfoot hunters out in the forest looking to film Bigfoot, some today with modern equipment, who still have not filmed anything remotely as close as this film. Yet these guys, whose soul purpose mind you, was to create the first documentary ever about Bigfoot, go hiking for a few hours and just so happen to run into Bigfoot right out in the open and film incredible footage of it.
Second TS, you keep saying Hollywood says they can't reproduce this, as if Hollywood is some single unit. It's not like Hollywood sat down at a board meeting and said, "Okay everyone, I know all of you are working on ridiculously expensive projects right now, but stop! Until we solve this Bigfoot thing, we aren't doing anymore work. We need every special effects artist to try to recreate that Bigfoot costume now." Hollywood hasn't recreated it because, Hollywood doesn't care and isn't trying. Look, I can do the same thing here. A lot of people think this Bigfoot pic is fake:
But if it's fake, then why hasn't "Hollywood" been able to reproduce it?!! Answer: because they aren't trying to!
Then there's your claim that world renowned "anthropologists" have even said humans can't move like that. First, anthropologists are not anatomists, so you're quoting, well paraphrasing, some unnamed world renowned anthropologist (btw, there are very few "world renowned" anthropologist. "World renowned" tends to be a phrase stupid documentaries wanting to prove some point use to describe their so called experts.) about a field they aren't actually experts in. I can do that also: a world renowned therapist (that's me) says the muscle movement in the video is easy to fake.
Finally, in respects to the muscle movement and toe curl, I'm watching your gifs, and frankly...I don't see it.