You've peaked my curiousity. Does his thesis include the supposition that Japan and the Allies were otherwise evenly matched?
I'm sorry.. but I must! When you post with such words as thesis and supposition and otherwise, but you type "peaked" instead of "piqued"... I must correct!
To pique one's interest is to excite or arouse one's interest in a subject. Just FYI.
In terms of the book: I haven't read it myself but also am highly dubious on that phrasing alone. There was nothing equal about the matchup, not at all. Especially at that phase in the war when the war was all but OVER. The Japanese had been driven back to their homeland and the remaining planes were beat, broken, underperforming, and they had so few pilots they weren't even training new ones. They were training kamikazes because that was faster.
I question the tone of the book, if not the actual facts. Sounds a bit revisionist.