That whole article is written like irresponsible click-bait journalism. After raising four kids I can take shit like this with a grain of salt, but as a new parent I would've freaked out and overreacted.
When two of my kids were babies they had bad reactions to normal formula, and weren't gaining enough weight with breastmilk. Soy formula was the only other option and not giving it to them likely would've been worse than any hormone issues.