I know better than to hold myself as the moral paragon of humanity, and I'm in many ways atypical, so I would feel strongly suspicious of an alien civilization telling me their cultural history led them to hold values exactly identical to mine.

Also, are we talking twice as many Planck times? Twice as many biological generations? Twice as many imperial ages? Twice as many technological transitions? The difficulties they had to face may mean many possible things depending on the exact nature of the discrepancy in time.