Then at least you are under and NDA and there is no way for the company to spin it that you were a bad guy.
The numbers mentioned are pretty serious: "We found records containing email addresses in 10,560 tables across 7,403 of the 24,664 websites (30%)."
To me - and please correct me if I'm wrong - that reads like 'we downloaded at least parts of 10560 tables'.
If you actually want change and things to be secured, this post might cause that. I dont understand the energy you are putting into convincing us thats a bad thing.
Companies respond in different ways to disclosures, by independent researchers and by people under contract. You are absolutely right that in many cases the findings end up in a drawer. This is a real pity. Invariably those will sooner or later be exploited by the bad guys and then the company has a serious problem: they will have to show their homework and if it is found that - at least in Europe - they were aware of the issue but did not take action it may well have the effect of changing a warning into a fine and a fine into a larger one.
Even if the company ends up paying damages, it’s too late for the true victims.