I read all the reviews and I have to agree, I was disappointed at the end of season 3, the last episode, "New Discoveries". they did not talk about the evidence more especially when Dr Mayor and Ronnie were videoing a large figure (CA) standing up peeking behind a tree and had red eyes. I know they talked about it in the episode, but talk about it more at the conclusion show. Or what about the pile of bones, any DNA? Or in (WA) they had the drones up and saw an upright figure on thermal running high speed toward Dr Mayor. Did they check the next day to see if there were any footprints? If there was nothing there, then just talk about it anyways. What about the shadow figure running across the river? What about all the bedding in Nor CA? Talk about it more and have a group of diverse guest specialist in different fields. It should have been a two hour show.
I like the thoughtful reviewer who said that the tree structures might be a burial plot and should use GPR. If a Bigfoot has the intelligence to weave together bedding and structures, then it would maybe have enough intelligence and feelings to mark the graves just like humans or it hold as a postmortem ritual.