Sounds improbable. The first thing that comes to mind is the federal protection of vaccine manufacturers from liability due to known side effects of proper use.
Yeah, it struck me as an odd statement.
And it makes sense for vaccines, since they provide a broad society benefit, but I'm not sure it makes sense for guns other than "they are so dangerous that our legal system would make it entirely unprofitable to make, use, or sell guns in the US." Seems kind of the point of a robust product liability system, but OK.