I ignore stuff like this. 500 people is a vastly small sum of people to be studying. Besides canned food has had BPA liners for decades now. Besides I think BPA is a red herring.
I dont,chemicals and people just dont mix well IMO.
On my piddling garden we use nothing chemical,if it isnt made by nature,dont use it.And we lose little.Some just wont grow because of powdery mildew,oh well,then I cant grow it here.
As for the politics of can this be done large scale,beats me,but if I have a choice I avoid every chemical and every drug possible.Note IF POSSIBLE,some,like the canned food lining,we are stuck to a large degree,I would prefer it gone tho....
FWIW,again,world is a dangerous place.