It still pales in comparison to the record keeping of Roman Britain that preceded them, though. And I think that’s the point. The Anglo-Saxon Chronicle is an excellent resource, but it’s far from an exhaustive history compared to the records that exist for the eras before and after it. You go from obsessive Roman record keeping to the Anglo-Saxon Chronicle to Domesday, basically. You’ve got a story book nestled between two spreadsheets.

EDIT: Please keep in mind I’m painting with the broadest strokes possible and the reality of things is not so cut-and-dried.