It looks reflection-symmetric along the crank arm axis to me. Clearly, it is still asymmetric in the sense that the two arms closer to the crank arm are shorter than the ones pointing away from the pedal.
But in the end, the proof is in the data — the new cranks seem to be just as bad as the previous-gen cranks. I’m baffled that Shimano hasn’t fixed this. This is an unnecessary own goal.