I honestly apologise. I did not pass my statement through my net post filter, as I should have done. That is completely my failure. No snarkiness or diminutisation intended, just my poor formulation.
As for the curves. Do I interpret your point correctly as follows? The major factor of the discrepancy was the undetected cases in April vs October, due to lower testing? Does that hold true when comparing with the quite low numbers coming out of antibody screening? I remember this being drastically overestimated (4x?).