I definitely understand the strength of league stuff. But I've come around to more tools-based/upside drafting than the analytic/likelihood of success models of late. I think a guy like Soderstrom has a likely higher chance of making it, but what does he become?
With a question of something like Caulfield vs. Soderstrom for example, I think the spread of possibilities is much larger for a guy like Caulfield. In rudimentary stats terms, his confidence interval is a lot smaller, but he has wider tails at both ends. Whereas I would think Soderstrom's "mean" outcome is at a higher baseline, but with less variance toward the tail ends.
My drafting philosophy is to prioritize that "tail-end" upside over average likelihood of success. The draft is really the only place where you can ever find cost-controlled star talent. So that's what I would hunt for. If you're a smart GM, you can find effective complementary players elsewhere. So I would disproportionately emphasize that tail-end upside.
I'd rather take a chance on a guy who has a (small) chance at being a star than a likely middle-of-the-lineup player. And there's a chance that those failed star draft picks end up as a middle-of the-lineup player as well. It reminds me of the JV vs. Nylander/Ehlers debates of 2014.
That said, I do think all of Soderstrom, Kokkonen, and Heinola are worthy first round picks. Would I take them in the top-third though? I'm not sure.
Side Note: I used Caulfield in my examples rather than a guy like Dach because, in all honestly, I'm not that high on Dach either.