Just because your snakes don't bleed when they shed (which they probably do from time to time) does not make this fellow incorrect. I see drops of blood with almost every shed. It is very common and completely normal. Sometimes they might get blood on other parts of the shed because they bleed from the vent, the last part to shed.
You are the one who said it was not normal, when in fact it is completely normal!! So, by that statement alone, yes you are INCORRECT.