Exaggeration ? Maybe. Maybe not. We talk about blade not razor(s). I tried to explain myself what is good for blade edge and longevity.A bit of an exaggeration? Unless the lower diagram is a straight razor or a vintage lather catcher with a top mounted blade, I don’t see how it would be possible to get an angle much shallower than the one in the top diagram. The cap is going to position the blade at an angle to the face.