That's a weird logic. Yes, Välimäki is only the 3rd best scorer on his team, scoring at PPG rate as a defenceman and being 8th in scoring in the entire league and he's not top offensive talent on the team? What does it matter that RNH is so much behind in PPG? He's not that offensively talented player that he could rival McDavid and Draisaitl. Also, you can pick top 3 scorers in different teams and find very different situations. Pittsburgh's top 3 were Malkin (74 points), Rust (56) and Crosby (47). Crosby isn't an offensive threat clearly, but oh wait he has better PPG than Rust. (1,15>1,02). Carolina's top3 were Aho (66), Teräväinen (63) and Svechnikov (61) and their PPG's are 0,97; 0,93 and 0,90. Would you not call Svechnikov an offensive threat on Carolina? There can be several offensive threats on a team, not just two.
I also wouldn't take that 1,5 PPG that Ruotsalainen has so seriously. His scoring is unsustainable and they have played just 17 games. Quite small sample size and the situation could change fast. We likely won't find out how the rest of their seasons would have gone as Ruotsalainen and Välimäki will go to NHL once the camps start. I doubt the difference in their PPG would be that big if they played full seasons in Liiga.
And just to be safe, I don't think Välimäki is as good as Karlsson.