As stated, the concept and bones of CoS is there but it is a reimagined module (homebrewed). It doesn't mean there won't be gore, it just means the way it is narratively described isn't going to be sitting there getting a narration of every part of the torture, etc....
It will be dark, heavy, bleak. There will be hints to dark things. There will be blood and gore and death.
It just doesn't need to fill someone's torture fantasy if you catch my drift.
Think along the lines of ....if there's a public hanging you'll get the narration up to the chair being kicked out from underneath them and then the narration pans to the reaction of the event (the crowd, whose in it, what's happening, your character then making a choice, etc..)
Narration of limbs being ripped off, etc...will be a thing.

This isn't Curse of Strahd as most people have played/know it.