Is there some special insight you have over the hockey world (players, coaches, GMs, writers) as to the significantly higher value placed on goalscoring vs. playmaking/2-way play?
Look at Pearson finalists and see where the deviations from top-3 in points are.
2006: Top-3 in points were the finalists.
2007: Crosby/Lecavalier were top-3 in points, and then Luongo rounds it out. Thornton had 6 more points than Lecavalier did, but Lecavalier was the best goalscorer in the league (as opposed to Thorntons 92 points), and he made the Pearson finalist.
2008: Top-3 in points were the finalists. Interesting to note that Iginla got the finalist nod over Datsyuk who had 1 point less, but 19 less goals. Datsyuk was the best defensive forward in the league - but being the best goal scorer > best defensive forward in this case clearly.
2009: Top-2 in points were finalists. Datsyuk (4th in points) did get the finalist nod over Crosby (3rd in points). Noteworthy that Crosby and Datsyuks goalscoring was equal - so this argument would actually be that Datsyuks defensive side put him over the edge since everything else was equal. Also note that even though Malkin had 3 more points than Ovi (slightly lower points/gp), Ovechkins huge goal dominance (21 goals over Malkin) is what won Ovi the Pearson.
2010: Top-3 in points were the finalists.
2011: Sedin and Perry were finalists and top-3 in points. Stamkos (who was 2nd in goals) got the other finalist spot (5th in points) over St Louis and H Sedin who both had more points (and were #1/2 in assists). Seems easy to say that his goalscoring was much more valued.
2012: Malkin and Stamkos got nominated, Giroux who was also 3rd in points (2nd in assists) and had a better point/gp than Stamkos (and only 4 less points) got left off the Pearson finalist compared to Stamkos who had a world-class goalscoring season despite very close overall in points/p/gp).
2013: 4 players in top-3 cause of tie for 3rd. Ovi lead in goals, Crosby lead in points/gp, and St. Louis lead in points - those 3 got nominated. Stamkos left off.
2014: Top-3 in points were the finalists.
2015: Price wins Pearson, and Benn (Art Ross), and Ovechkin (1st in goals but only 4th in points) get the other 2 Pearson nominations. Ovechkin also finishes 2nd in Hart - cementing him as the #1 forward that year. So despite Ovi finishing 4th that year in points, his goal dominance is clearly seen as more valuable.
2016: Top-2 in points were the finalists (with Holtby as a goalie rounding it out)
2017: McDavid and Crosby were top-2 in points and also 2 finalists. Note that Burns was the other finalist despite only scoring 4 more points than Hedman (who is a way better defensive D-man). The big difference between Burns and Hedman? Burns had 29 goals and Hedman had 16.
2018: McDavid wins (art Ross win), with Hall and Mackinnon rounding out the finalists. Weird AF year since neither Hall or Mackinnon were that great defensively (and Kopitar won the Selke despite having 1 less point than Hall). Clear that goalscoring, playmaking or defensive play had no bearring here to put anyone above anyone else.
2019: Top-3 in points were the finalists.
2020: Finally the first example where playmaking is clearly seen as more valuable. Drai wins (1st in points), McDavid who is 2nd in points (and assists) left off (largely because of split votes with Drai and not because of lower goalscoring). And then Panarin and Mackinnon round out finalists over Pastrnak despite Pastrnak having same/more points and more goals.
2021: McDavid wins (huge point lead), and Draisaitl who was 2nd in points gets votes split. Matthews gets a nomination despite being 5th in points and hardly any assists - but had a huge goalscoring lead. Crosby rounds it out, was 10th in points, 13th in goals, and 14th in points. He also wasn't any better defensively than Marchand (3rd in points) or Stone (3rd in Selke voting and only had 1 less point) - so clearly a name-recognition finalist when you break it down. Either way - clear that goalscoring was favorited in the Pearson placing when you look at Matthews
So yes - I think there is pretty good proof that goalscoring is seen as more valuable (not only statistically/mathematically, but also perception).
2022: Matthews wins despite only finishing 6th in points (note he had a killer goalscoring year). McDavid (art ross) is a finalist, and Josi is a finalist.
2023: Mcdavid wins (huge point lead, 1st in goals). Karlsson is a finalist as well. Pastrnak takes the last finalist spot (tied with Kucherov for 3rd in points). Pastrnak clearly got it due to his 61 goal season despite Kucherov having the same points (Mackinnon having also having 2 less points). Main difference being that Pastrnak had a huge goal lead on those 2.
2025: Mackinnon and Kucherov were #1 and #2 in points. Matthews had waaaay less points than McDavid, but also had a huge goal lead that year and over double the goals than McDavid (despite McDavid hitting that legendary 100 assist mark).