Actually, the author made a surprising number of quite accurate points, although his numbers were off particularly regarding total air strength and the IJN's carrier capacities. But this is understandable considering the Japanese penchant for pre-war secrecy.

His points regarding the numbers of pilots trained each year, the backwardness of the Japanese aviation industry, especially with regard to aircraft engines, the problems with bauxite supplies, the Japanese industrial system, and the limited numbers of Japanese with mechanical skills were all bang on, and these issues would come back to haunt the Japanese air forces during the war.

For example, the author's comment about ingenuity being required, even if you have been presented with blueprints, reminds me of the Japanese experience with the "Tony" which utilized a license built copy of the German DB601A engine. The Japanese not only were given the blueprints but also samples of actual engines. Yet Japanese industry could not reproduce the DB601A, a proven engine, to the same reliable standards as the German version, and the "Tony", an otherwise good aircraft, suffered as a result.