If you notice in all his previous works regardless of how violent they are they are never gory and never in bad taste.Even Bloodborne.
This is from his Dark Souls Design works interview:
"Miyazaki: You may not believe me, but I always tried to maintain a certain level of refinement and elegance in all the designs. I often told the artists muddy or messy is definitely *not good*. I think this carries through the entire game, of course if you asked me to describe what this "elegance" is… well I think you just have to look at the designs and judge for yourself, but it really is one of the most important factors in everything I oversee.
Waragai: I remember you said that to me when I was working on the zombie dragon. Originally it was covered with maggots, but you told me that I needed instead, to try and capture the sadness of this great creature as it marches towards extinction.
Miyazaki: As I said before, everything has it's particular shade or tone, blight town for example is the rawest, most disgusting area in the game, but looking at the area as a whole, I wanted it to feel both bitterly cold and possess a deep sadness, and that's the atmosphere I tried to build on. You could say I have a habit of working in this way, and I think you can really see that in Dark Souls' art direction.
"
I dunno but having dismembered limbs flying all over the place sounds like something a 12 year old would find cool but not someone like Miyazaki.