I think it's fair game for discussion. But I think calling Demidov the consensus BPA at pick 3 is a stretch. I don't consume as much prospect analysis as many here, I'm sure, but I've seen several compilations where the compiler has noted scouts that have him as low as 5.
I also think it's an assumption that "raw skill" is what makes a player the BPA at a given spot. Makeup, motivation, intelligence, fit - all of those also matter. Maybe not as much as skill, but they're important. And while we've seen Verbeek emphasize those ancillary traits later in a draft (as you noted with Gaucher and Myatovic), I don't think it's established that he'll follow that same template with a top five pick. Lastly, we have to account for the Madden influence on those picks as well.
But those are really beside the point. Mostly I think it's helpful that if we're having a speculative discussion, we frame it that way. There is a real chance that Demidov is available at 3 and Verbeek drafts someone else - I agree. But it's not known with certainty, as your previous post stipulates. I do think there's a difference in the tone of discussion saying, "I don't think Demidov is Verbeek's type based on the past two drafts" versus "Verbeek is going to pass on the best player available and we're all going to hate it."