What Do You Think? Is Powdered Milk Bad For You?

I found this article on the internet interesting because I had never heard anyone say that powdered milk or powdered eggs were bad for you.  These are both in my long term food storage.  I don't use them much, and I don't use powdered whole milk, but I should go check to see about our eggs.  What do you think?  Would you stop using powdered milk after reading this article?