There is a difference yes, and yet they didn´t just run into his blades, if you paid attention, you´d know that our boyo here before his memory was wiped was not just a proffesional warrior/soldier, but also respected by the deceased king of the very same guys that he then slaughtered after the king´s son did a massive fuck up, they likely were all trained soldiers at base minimum, + as said before above level 52, look at it like this, to be a proffesional, you need skill, memories, muscle memory which can be lost in cases of amnesia or say, a memory wipe, and other rather important life lessons oriented around combat and hunting, they more or less hit a complete reset button on him, rendering him completely defenseless, instinct often is not enough without knowledge
Example albeit unrelated, why does Taskmaster refuse to copy deadpools fighting style, because Taskmasters ability isn´t mimicry, it is in fact an extremely evolved photographic memory that was further enhanced by an imperfect copy of the super soldier strain used on captain america, his body sees a combat style and memorises it at first sight, sometimes well enough that he can fight on an autopilot, deadpools fighting style is, for lack of better words, extremely self destructive as he doesn´t need to really care for defence with his regenerative properties, Taskmaster does not have those, and he knows it way too well, thus he actively avoids copying people like deadpool and MoonKnight his body if it was to go on autopilot, would literally get itself killed if something even slightly went wrong
There is a difference yes, and yet they didn´t just run into his blades, if you paid attention, you´