Too much of what is labeled “Christian fantasy” is only “Christian” on the outside. But then you can say that of some churches, too. And people.
Just as it’s possible for a politician who supports and publicly funds abortion to say “I’m a good Catholic!”, any publisher can call any book a Christian novel. Sayin’ so don’t make it so.
Ipse dixit every day. Just because some “knowledgeable” speaker says it certainly does not prove truth.