Well you are correct about the reliability factor. In theory, we could have randomly tested, but for reasons that escape me this was done almost nowhere. Deaths is more reliable.
However, the metric that is actually at least attempting to measure the underlying reality of interest, here, is not deaths, but cases, that's my only point. But I totally concede that in some cases deaths may be the less bad metric for cases, than confirmed cases.
However, the metric that is actually at least attempting to measure the underlying reality of interest, here, is not deaths, but cases, that's my only point. But I totally concede that in some cases deaths may be the less bad metric for cases, than confirmed cases.