I think you’re confusing me with other commentors. I haven’t suggested this research in particular is being actively used to support policy decisions. Nor have I suggested this research is advocating for policy.
In my initial comment I simply said policy in general (at least with gun control) shouldn’t be based on people’s feelings/anecdotes.
I think this study asked a very interesting question, and I find the results to be very interesting. I don’t really have any issues with this research by itself.