I think WUNC oversimplified Stimson’s argument for their own purposes. Stimson’s work on issue preferences (that I’ve seen) is extensive, thorough and insightful.

Although I haven’t listened to the broadcast, I’m betting the interviews refer to Stimson’s work that shows many people to label themselves as “conservatives” despite the fact that they favor (to some extent) redistributive economic policies. Socially, they are conservative. On foreign policy, they’re hawks.