I don't expect Cain to respond to those specific comments because he can't. Whatever he did, he went about things the wrong way and there is no disputing that.
I said it for him to hear it and (hopefully) think carefully about how he is managing risk when it comes to his products and customer health. If something like this happens again, he can't say that no one warned him, and neither can anyone else who reads it and continues to buy from him.
Cain is making changes to his formulation process to make things go faster without fully examining the risks associated with those changes.
Hopefully he will stop because that's not safe, but if he doesn't at least it's out in the open now