I don’t think we have any good data on life expectancy among hunter-gatherers. Many people argue that life expectancy went down significantly with the transition from hunter-gatherer societies to agricultural societies. That may or may not be true but the statistics you link are not relevant to the claim. Just because life expectancy has been going up for the last few hundred years does not prove that it was even lower some thousands of years ago.
I don’t think we have any good data on life expectancy among hunter-gatherers. Many people argue that life expectancy went down significantly with the transition from hunter-gatherer societies to agricultural societies. That may or may not be true but the statistics you link are not relevant to the claim. Just because life expectancy has been going up for the last few hundred years does not prove that it was even lower some thousands of years ago.