The article presumes it's an issue with nudity or sex.

I don't see anything from the developer stating that.

My first thought is the first witcher game was clunky as fuck.

They put out a third person action slasher with PG elements.

They built it on the Neverwinter removedhts engine.

It wasn't made to work like that, at all. So yeah, it's clunky and outdated.