This is a belated alog from some time last week.

Since OFI length DOF is not nonsense any more (alog 44837), I injected band-limited white-ish noise at around 0.1Hz into L, Y and T so that the RMS becomes two orders of magnitude bigger (red traces on the left panel) than without injection (green traces on the left panel).

No change in DARM (right panel).

Later I also injected a single line at 80Hz with huge amplitude (blue traces on the left) and saw no change in DARM though it's not plotted here.