Broadly, yes. They are unevidenced claims informed by a particular faith position.
They're not doctrinal assertions according to any denomination - at least, as far as I know. But even the word occult issues from an antagonistic world view - its sense of "hidden' isn't really used any more; rather it's a religious pejorative with all kinds of value judgments attached.
I feel the question of whether something can or cannot be disproved (e.g. D&D spells don't actually work) isn't really germane, and doesn't really enter into it for someone who holds their religious views very closely. Upthread, there are some views expressed which are wholly unsympathetic; I understand, and sometimes I get frustrated too. But I think it's important to distinguish between the social phenomenon (intolerance, anti-intellectualism, psychology of fear), and the individual, who might be in a very different place.
If I were - say - an Evangelical Christian, I might be very concerned about many elements in D&D; it would be inconsistent if not downright reprehensible of me to encourage or allow my children to pretend to conjure demons. I lost a good (Evangelical) friend in my mid teens because he (or his parents) didn't approve of my demonocentric games - that was during the height of the Satanic Panic.
I do love me some demons.
Because Christianity does operate from a position of enculturated institutional power, there is a tendency to pound it pretty hard, understanding that it can take the knocks - it's also (for most of us, I'd venture) our cultural heritage. So it's sort of expected to bash it.
The individual people who comprise it are just people, however, and probably don't deserve to be bashed. And helping someone to change their lens - from the irrational to the rational - is a painfully difficult process, in which confrontation is seldom useful.