The above illustrates the hazard of over relying on post war memoirs. It's not just German ones, Allied musings can be just as self serving (I was right but they didn't listen to me). Germans suffered from other issues, the need to be seen as a good German and not a bad Nazi. Contemporary accounts have to be taken with a grain of salt as well, they can be completely honest and accurate but they usually can't see all the moving parts and draw the wrong conclusions from what they do see. It's human nature to try and boil down complex issues to simple equations.