I’m thinking not. Certainly, if you take infant mortality out of the mix, the average life span increases. However, people routinely died of infectious diseases in the past that we now consider much less of a threat. My father’s father died at age 32 of pneumonia after having the flu. This was before antibiotics. Clean water and sewer systems also decreased deaths from diseases.
I think the point of the article is that the human life span (that is, what you could live to be if you didn’t die from infectious disease, accident, etc) have not changed much. I think it’s interesting that in the Bible, God gave man a lifespan of about 120 years. That seems to be the upper limit.
I've seen that figure in non-biblical context. A guesstimate of what would be normal without disease.
Don’t forget vaccines; arguably MUCH more important than antibiotics in increasing life expectancy.