Super cinny would probably wash out the enchi gene. So would a cinny, black pastel, enchi.
Super fire would washout the albino gene.
I assure you, they are compatible and aren't in the same complex. They just aren't really morphs that go well together so not many people are trying to produce them. Cinny enchis have been made and are pretty plain looking imo. Im sure there are other breeders out there who have the same opinion/taste as me.