Solid read, it seems important to remember that even with a study and data this in-depth that we can't jump to unsupported conclusions or claims.
There can be many unobserved factors that are affecting outcomes. It seems best to say that babies/children and pesticides have no business mingling. But also many other things are dangerous as well and they should probably also be researched to understand the cumulative interactions as we develop through our lives.
It would be nice if there were less environmental risks and more information about why they exist.
It is this reason why these studies are useful. Hopefully we can slowly understand more and work to mitigate any risks.