The author did not make it seem like that, they explicitly pointed out otherwise, the 5th paragraph:
> This is not to say that there aren’t some benefits to breastfeeding. In poor countries where water quality is very poor, these benefits may be very large since the alternative is to use formula made with contaminated water. In developed countries — the main focus of the discussion here — this isn’t an issue. Even in developed countries, there are a few health benefits of breastfeeding for children in the first year of life (more on this below).
> This is not to say that there aren’t some benefits to breastfeeding. In poor countries where water quality is very poor, these benefits may be very large since the alternative is to use formula made with contaminated water. In developed countries — the main focus of the discussion here — this isn’t an issue. Even in developed countries, there are a few health benefits of breastfeeding for children in the first year of life (more on this below).