The current format is only marginally helpful. you basically have to go look for the original report. A link to the original report I think would make the most sense.
The target aggregate report/table is meant to be used as a base for additional reports. We know it doesn't contain every field, description or additional data needed for users to appropriately utilize the report for every target table. Instead, we expect users to create their own report with all fields needed for their specific client, wave, object and target. This new report can be registered against the target as a normal report and is much simpler to create using the existing error aggregate then it would be without it.