Interesting, but many parts of the videos compares carnivorous and herbivorous, with very brief mentions of omnivorous. Even when omnivorous are mentioned, the point is dismissed simply by saying that "omnivorous retain features similar to carnivorous so as to hunt".

Also, many points about the design of our physiology (esp the parts about our teeth and jaws) are compared to carnivorous that have to hunt with their teeth/claws, while humans utilise tools and thus do not need the same canine teeth etc. Humans could simply have started off as herbivorous and adapted to become omnivorous, while keeping many of the herbivorous traits as we circumvent the need of carnivorous adaptations by utilising tools.

A lot of the other points about stomach sizes etc, doesn't take into the account that humans have learnt to store, preserve and cook food, so we do not need to have the same design as most carnivorous. E.g. the point about the low pH of stomach which is required to kill bacteria in decaying flesh.

Disclaimer: Not a biologist or anything but this makes sense in my head. Open to discussion

Edit: Also consider the Panda, which is often said to have tonnes carnivorous traits. Still eats bamboo.