All of this, is as clear as mud (not an affront). An individual doctor/panel of doctors would have to separate each patient in a linear fashion to determine what killed them?..what saved them? and that's after setting aside any other comorbidities that might mitigate the findings. We can't take for granted that LL would have brought it to Zero, under any circumstances.
I am not sure the whole world knows anything at this point... until the dust settles on absolute clinical evidence
As Rumsfeld once said.."you don't know..what you don't know"

Best Regards
Sean