However a problem with presented data aggregation, combined with a clear policy objective, is that many will assume the data is cherry-picked to suit the policy objective, and the aggregation is therefore unreliable, low quality data, subject to suspicion.
An analogous situation, politically in the other direction, is occurring with number of COVID-19 deaths reported. Everybody who cares knows it is substantially under-reporting the true number, because it only reports confirmed, tested COVID-19 cases. Yet it is usually presented as "the" number of deaths, and discussed as though that is the factual number.
However a problem with presented data aggregation, combined with a clear policy objective, is that many will assume the data is cherry-picked to suit the policy objective, and the aggregation is therefore unreliable, low quality data, subject to suspicion.
An analogous situation, politically in the other direction, is occurring with number of COVID-19 deaths reported. Everybody who cares knows it is substantially under-reporting the true number, because it only reports confirmed, tested COVID-19 cases. Yet it is usually presented as "the" number of deaths, and discussed as though that is the factual number.