Mentioned in another comment, but I suspect the lawsuit will focus on either negligence in product safety features, or marketing claims about protection against

Mentioned in another comment, but I suspect the lawsuit will focus on either negligence in product safety features, or marketing claims about protection against this type of use not working as claimed. I guess following your analogies, maybe a "fingerprint lock gun" that unlocks with anyone's fingerprint, despite claims that it doesn't. Or beer marketed as 4% alcohol content that actually is 8%. And, again, not saying that's the case here. But I suspect that's what the plaintiff would attempt to prove, some negligence of due diligence or false claims.