This is in no way meant as a way to simply exclude digital photographers,
Well, I guess I'm in luck as I've never once considered myself a digital photographer.
4. The final images must be printed on photographic paper. (This can either be done by using a digital projecter or by having an internegative printed on transparency film aka clear acetate and then contact printed.)
Frontier prints count then? If what I know of the machine is true, I guess that they would be filed under "digital projector."