Yes. This is just common sense.
Like the Inuit? They don't eat all meat anymore either, food is flown in for them as well. When they did eat all meat they also consumed the marrow and the gallbladders and the livers and the eyes for the vitmains, especially vit c.Again, I'm not really sure where people get off asserting shit like this when there are numerous existing populations w/ all-animal diets who are apparently doing just fine.
Likewise, if individuals on such diets feel better and their medical test results show objectively better physiological markers, one can't handwave away that it "doesn't work."
How many people in this modern age with modern butchers eat every bit of the animal and further how do they afford on their middle class wages the costs of eating only meats like steaks. How long can you eat a steak for breakfast, lunch and dinner for weeks and weeks on end. Its not realistic, its a modern fairytale. Do you do it, dude? You eat only meat for every time you put something in your mouth? It works for the time it works, until another season roles around and the physiological demands ask for other things. Like, this isn't hard for me to understand the rhythms of my body, I don't need to intellectualize the process. Bravo you eat only meat. Keep it up now for the rest of your life. I would be curious to see it actually work for somebody who is actually walking the talk here. Have you ever hunted before? I have. I've eaten all kinds of game from Deer to Moose heart. Just the value of the meat for consumption is not the only factor to even consider here. Palatability, flavour, and logistics are just as important for an actual long range diet. Impress with eating it for greater than 2 years exclusively. Then I would take any opinion more seriously.