One thing of note, though, is he has hardly any empty net points this year (I think just one) and we're now in a time in NHL history where some of the Art Ross contenders are piling up at least a dozen.
If you want to bring down the PPGs of his competitors by taking away EN points then we should do the same for 3 on 3 OT points; both of which he, Mac, Drai and Kucherov have all benefited by in recent seasons.
This doesn't move the needle much for Crosby vs. Benn. What is more relevant is point shares with other elite offensive talent. Benn shared 57% of his points with Seguin who was 2nd in PPG that season. McDavid has shared 65% of his points with Draisaitl who is clearly the superior player this year to McDavid.
All that being said, like Crosby in 14/15, this regular season doesn't diminish he legacy, it simply adds nothing to it. Crosby returned to form after a coaching change early the next season that saw a return to a game plan that didn't stifle the Pens offensive talent.
We'll see what the playoffs bring. Perhaps the he and the Oilers are sleepwalking a bit through this season.