The discussion seems to draw from the description (from the book "Other Origins" ) of how the giganto model was made, and the quotes are reasonably correct. The only error, which Dr. Ciochon made himself, was to say he sought me out, when it was I, looking for anthropologists to team with, found him and made the inquiry about a collaboration.
But generally the material in the video is correct. The full scale model was indeed a hypothetical design, given we don't have any fossil material but jawbones and teeth. And it was assumed to be a quardaped, and only posed standing up to show off it's true body size, not to suggest it was bipedal. The one arm was raised to suggest it was standing to reach for some kind of fruit.
For the record, I don't consider Giganto as a relative of sasquatch. Based on the PGF figure, I personally think she is a hominid, derived from some relic human form such as paranthapus boisei or early neanderthal.
Bill