https://en.wikipedia.org/wiki/Direct3D
Although Nvidia has announced broad support for Direct3D 12, they were also somewhat reserved about the universal appeal of the new API, noting that while game engine developers may be enthusiastic about directly managing GPU resources from their application code, "a lot of [other] folks wouldn't" be happy to have to do that."
So I read "they have announced broad support" and you read "they are against it".
Also as I have been told before, since when is Wikipedia an official source of info, anyone can edit it.