Again, hard to believe. There are several sections where a discussion of the king's position in this opening would have been more than appropriate. Alas, 'twas not to be. The author was content to go with the previous text - 'as is'. However, because White's b-pawn is missing, there are basic weaknesses in his Queenside position.
Activity is of utmost necessity here.
16 Rxf6 White has advantageously recovered his pawn. Qxf6 Bc4 Overlooked by White. Since 22 Qxh6 Bxf1 is hopeless for White, he plays on a few moves with a piece down and then resigns. White resigns The book does have its interesting moments. Then, after making such a broad statement, he gives but two examples of the retreat to g8.