Earlier quoted context omitted.
It is a common misconception that facts are reported because they are surprising. Facts are reported because they are important. More and more governments are passing age verification laws which put exactly this data in to the hands of even more shady private companies. This breach serves as evidence that those laws are misguided, and spreading news of this event may help build public support for those efforts.
In the example you give there is no needed provision to store the id or all information in the document. Only extracting the date of birth, name and document number is sufficient. Yes I know this a utopia and it won't happen. Edit: afaik storing the photo is only needed in medical cases to alternatively asses having the correct person. Bit much for something simple as age verification.
I mean.. if the governments did their jobs and multipled the punishment for a single breach by 70.000 (in this case) and cause the company to go bankrupt.... well, only then would the companies reconsider. But until then, they won't.