I don't doubt the symptoms are real, but symptoms do not make a disorder unless you can verify that they have a common cause in enough people. As I said the symptoms of this are far, far too broad and universal, even in healthy people.
I think that it is certainly worthy of study, but they have leapt into treatment before they even know much about the perceived illness. As I said on another thread, if I can answer yes to so many of those questions just having not had a good night's sleep, I wonder what kind of threshold you have to have before you actually consider someone to have ADD.
I have seen people who were very ill that had to think really hard about whether or not they wanted to accept treatments that could have caused side-effects. In these cases we have no idea of what we are treating, if you can even prove there is anything to treat.
This is demonstrative of the "Cart pulling the Horse", i.e. the companies that create treatments being involved in the actual defining of the illness. That creates a horrible conflict of interest. WOuldn't you say?