Well it’s all relative. Beavers make a more elaborate nest than the Olympic project nests. They even make dams. Does this mean Beavers produce cultural artifacts? No.
In Anthropology? Scientists are looking for stone tool artifacts.
https://humanorigins.si.edu/evidence/behavior/stone-tools
I.e. Oldowan, Acheulean, Clovis, etc
There is no evidence of Bigfoot making or using stone tools. A uniquely genus Homo trait. Undoubtedly as some form of great ape (which includes humans) it must have some form of tool use. For example Chimps fashion termite sticks to fish for termites.
If Bigfoot belongs in the genus Homo? Then it’s a real head scratcher. Because human ancestors have been working stone tools for 2.6 million years. If it’s split with Homo Sapiens was before 2.6 million years ago? It’s not human. It’s a bipedal cousin like Lucy, etc.
So Dr. Mayor is biased based on what scientists know about our past. This is the lens she looks through when looking at this mystery.
It’s possible that Bigfoot has regressed. Maybe it’s in the genus Homo but has somehow lost the knowledge of making stone tools. Or maybe it’s hand and fingers have adapted for a different purpose. It’s huge by human standards. Maybe that comes into play.
Until we have a type specimen to examine? We just don’t know.