Is this a robust finding? I heard something about this apparent discrepancy a week or so ago, and it was dismissed as probably just an artifact of dodgy classi

Is this a robust finding? I heard something about this apparent discrepancy a week or so ago, and it was dismissed as probably just an artifact of dodgy classification and the paper's author was a bit of a kook, a computer scientist who was delving into cosmology to find evidence of the simulation hypothesis.