Lyoyd Pie is a UFOlogist ala Zacharia Sitchen. Now there is a camp (pun intended) of Bigfooters who believe UFOlogist should stay away from Bigfooting. I would say The Bigfoot Lunch Club falls into this camp. Bigfoot as an inter-dimensional extra-terrestrial biological entity goes against the grain of the credibility many scientists and researchers have spent much of their sweat equity on.
Prominent cryptozoologist Jeff Meldrum and Loren Coleman would prefer to study fossil records and modern primates as oppose to exclusively searching for clues in ancient Babylonian texts. My very moniker, Epic Gilgamesh, gives away I am at least interested in Babylonian kings, but mostly because it is the first recorded relationship between a mortal (1/3 mortal anyway) befriending a wild-man. Enkidu is probably literature's first bigfoot, in my humble opinion.
Going back to Pye, you can go to his Hominoids website to judge for yourself whether or not he has a place in Bigfooting. I will say this, although we disagree with his theories, his theories do suggest a great amount thought and are well constructed.
Below is an audio interview where he talks about human origins and what he calls hominoids A.K.A. Bigfoot.