The particular review I quoted was written by Lieutenant-Colonel Scott Stephenson, PhD, of the United States Army. I find it hard to believe he'd be the sort of person to be criticising Mosier on nationalistic rather than professional grounds.
I had not heard of Scott Stephenson before so went looking for the review to which you refer but could not find it and so will take your word on its content. Did however find a review he wrote in 2001 on several books aimed at rehabilitating the reputations of the British Great War leadership wherein he specifically calls into question the conclusions of writers like Tim Travers and fellow US Army officer Bruce Gudmundsson. Perhaps the negative review of Mosier is merely due to an Anglophile bias in the reviewer, the professional historians contempt for the amateur or a combination of both.
That's not what's happening. Mosier is counting all the Allied dead but only some of the German dead; that's why his methodology is criticised.
Since you have obviously read
Myth of the Great War perhaps you can help me find these errors, since where I have crossed checked, he has inevitably agreed with his source material. Perhaps
Note 9 on page 80 where he states a figure and goes on to explain that no break down is available? Perhaps
Note 31 on page 164 containing an allusion to "correcting data for certain omissions" without going into details? Maybe it's in the body of the text where he uses actual War Office figures on page 242 or page 318 where he again combines dead with missing but for both sides.
This vague and oft repeated comment that Mosier fudged all the Allied data to skew it in favour of the Germans has never been coupled with a suitable quote from the book itself that I have seen. Without an unambiguous example am inclined to give benefit of the doubt to the author particularly when he went to all the trouble of actually counting graves on occasion, where one can be reasonable certain that all those interred were in fact, dead.
How can it have been "hiding in plain sight" when it's been common knowledge generally accepted by everyone? The fact that the side which was usually on the offensive for four years lost more men than the defender isn't "uncomfortable", it's plain common sense.
The Germans took the offensive in the West in every year but 1917 and even then counter-attacked continuously throughout Arras, Chemin de Dames, 3rd Ypres and Cambrai. They also attacked in the East every year but 1918 so the contention that they suffered less because they stood on the defensive is unsupportable and always was. Churchill mooted that explanation in
The World Crisis and it has been repeated uncritically ever since. Hence the disparity in casualties has been a blinding glimpse of the obvious since Maginot first spoke of it
during the Battle of Verdun but few English language writers have looked further for a reason than Churchill's shallow and demonstratably inaccurate assessment.
For what it's worth I do not believe that Mosier provides the Last Word on the Great War or the casualty controversy or that there will ever be a diffinitive and entirely accurate study of WW1. He represents a source,
Myth of the Great War resides happily on my shelves beside
Haig, The Educated Soldier just as John Laffen sits in harmony along side Robin Niellands. Now you even have me looking for Scott Stephenson's book
The Final Battle. Thanks.