“What’s Catholic about it?”
I find this question useful in deciding the worth of any religious writing.
The less mention is made of The Lord God, The Lord Jesus Christ, The Holy Spirit, The Blessed Virgin Mary, saints, angels, miracles, penance, asceticism, Calvary and the Four Last Things, the more you can ignore it.
I also surmise that those men who are demonically influenced, and demons themselves, will avoid talking about these beings and topics.