A couple of points... The SHL makes it very difficult for D to generate much except on the PP. Axel Sandin-Pellika (Salomonsson's teammate who is rated as having top-end offensive skill) has the same number of even-strength goals as Salomonsson in the SHL at 2 (and fewer if you include Champions League).
I agree that Salomonsson has higher offensive upside and perhaps lower defensive upside than Samberg, but I was making a stylistic comparison defensively. Salomonsson plays with very aggressive gaps all over the ice, relying on outstanding skating and mobility to recover if he needs to. In the D zone, he plays a fairly physical game, but not nearly as good at getting stops the way Samberg does with his size and reach and good stick.
Salomonsson is still so young that I think we could see his offense continue to improve substantially, and if it does, he could be a really good two-way defenseman, with impact in all zones and in transition. His skating is really terrific. He looks effortless, he just blows by a lot of opponents through the neutral zone.