It sounds like suing a gun manufacturer after a shooting.

Uh maybe, but you make it sound like the sue-er will lose. I would count a settlement as a win in this instance [1].

They have no responsibility to disclose anything.

[Citation Needed]

Refusal to disclose information is why Alex Jones lost his lawsuit.

[1]: https://www.cnbc.com/2022/02/15/remington-agrees-to-settle-w...