Bill Munns is the one who really put Patty in the "only can be a sasquatch" category and put to rest hoaxing claims. Others such as Thinker Thunker and MK Davis expounded on that. Sasquatch joint locations and proportions are such that Munns, a special effects expert, said he could not make a suit to duplicate it, that he couldn't make a suit that changed our joint locations. Patty is before CGI, there was no technology to fake it, thus making her the standard whereby we judge other alleged sasquatch videos/photos.
But even that fact cannot sway mainstream science into acknowledging the species absent of a type specimen. Not just DNA, but at a minimum a substantial body part.