Did you read the part where I wrote "However, if a hundred scientific studies find no link, they'll claim the link is there and science just hasn't found it yet."?
Study after study has found no link. If no link is found repeatedly, how is assuming the link is there and science just hasn't found it yet "erring on the side of caution"? Using that reasoning, you could claim that people shouldn't eat apples since they can cause cancer (science hasn't found a link yet, therefore the link is there waiting to be found), people shouldn't drink water or they'll get diabetes (no link found = be cautious), or people should keep tin foil hats on their heads to protect against solar flares (science says there's no danger and that tin foil hats would do nothing even if there was, but this just means they haven't found the connection yet).