As I understand the comments on this particular topic, I think the point of ATT doing this is missed. Yes, it is to inform the customers but, I believe that this has more to do with protecting themselves in the long run, should anyone claim to have some illness related to the hardware that they sell. No different than food manufacturers putting all the info on labels so people can clearly see what's in it and can't blame the companies for not informing the public of the ingredients, calories and all that other stuff we tend to not really pay attention to.
But, just like there are people who are label readers of food products, you have more than you think, who would be interested in this info. Even if they still decide to buy the product, they could never say they didn't know. It's on the package and, if you choose not to read it and buy it anyway, the fault is yours alone.