Hi
Madmole did some kind of rebuttal on his site I think, although we all know the thing about the condensation has been addressed I believe.
I don't think it really matters whether you rebutt it or not, any DIR diver won't listen as there are shortcomings from a DIR point of view which cannot be solved without redesigning the whole unit and inspiration divers pretty much disregard the article anyway.
Kindest Regards
Andy
PS found the link
http://www.btinternet.com/~madmole/divemole.htm