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You just can't deny that, and if you take into account that a Witcher is much stronger than a regular human, dismemberment becomes mandatory.
A witcher isn't much stronger than a regular human warrior... I really don't know where this comes from.
He has two major traits which come with his mutations:
- He has no feelings so he also doesn't fear monsters. (at least in theory...)
- He has improved senses and reactions.
On top of that he is a master in sword fighting and he learnt how to use weak magic by using witcher signs.
Apart from that Geralt is a pretty regular guy. He is not a super hero who can deal with each amd everyone without any effort. Someone like Bonhardt could possibly have killed Geralt as he did before with other witchers and he was no mutant or monster....
Also the force caused by a sword comes mainly from technique and not from pure strength (of course you have to have the strength to swing it but you don't need to be a mutant for that). You can of course dismember human limbs if they are unprotected, nobody denied it. But Geralt doesn't dismember each and every human enemy he faces in all sorts of gory ways. His fighting style is brutal, efficient and bloody but not that over the top.
And with disappearing blood effects and even corpses the whole gore system sems to be pretty unfitting to me. I hope that at least on PC blood effects and corpses will stay until we leave the area...