No, it is absolutely "TRULY IMPORTANT" to determine if these men are popes.
It's an unanswerable question. No one's opinion outside of the Church's decision matters. At best, one can come up with a 'high probability' for x, y or z, but there will never be certainty until the Church says so. Hence, outside of a fun, intellectual debate, or to correct extreme views (i.e. the "una cuм" ridiculousness), it's a waste of time.