About every decade as long as I can remember there is a new kind of plastic or coating. With the tacit admission of like "ok, that one maybe wasn't great for you, but this new one is fine we promise :)"

I also think online reflexive contrarians who have snorted too much "correlation isn't causation" is a small but real part of the problem too. Maybe correlation isn't causation but it isn't completely spurious either. If we always wait for incontrovertible proof we will never turn aside from a harmful path in time.