This graph is absent from the official Phoenix II datasheet, but the formatting is consistent with Harman / Ilford's style. Unless I'm very wrong, this indicates that Phoenix II has a serious magenta/green crossover problem.
Not just that; red and blue also part ways. Of course, we don't know for sure if this chart is official. If it is, it doesn't really surprise me since this is still a halfway-house product. The partial masking situation @Lachlan Young has commented on extensively probably explains this pretty well.