That's my criticism of Riddlebarger is he is to free and easy with the spiritualization. But as a dispensationalist that would be my answer it's the same criticism I have against Beal and his idea of the New Jerusalem being The Eternal State. In his argumentation for this view he uses The Book of Ezekiel where he tries to argue that "the covering cherub" or what have you in the prophecy against Tyre is actually Adam almost all of the imagery is of an angelic nature it just seems like he is using Pre-sup logic.