You could try arguing that but would be totally wrong. The talent depth in the league right now is quite a bit better than the 80s. The 21 team league was ~90% Canadian. The best European players in the world were not playing in the NHL
There were Swedes and Finns over here in the 80s, those absent were the Russians and Czech/Slovaks (minus the Stastny brothers). What's odd is once the iron curtain fell and the doors opened to Eastern European players, league scoring went down.
This is traditionally attributed to the evolution of goaltenders' size and their equipment. That's part of it but ignored is that for every Bure, Fedorov and Jagr who came into the league, they were accompanied by a basin of players who would not have qualified for a NHL job back in the '80s. Maybe 4th line players of today are better than 4th liners from back then, but they aren't the equals to 1st/2nd liners of the '80s.
Leaving out Dionne and Howe as a truly different era, and Gretzky/Lemieux as freaks of nature; Sakic, Yzerman, Jagr and Messier played a fair piece of their careers through the dead puck era. That's just four players out of the last 40 years who managed to hit 600/1,000. All were supremely skilled. All had lengthy careers. All were healthy through most of it. All played for top end Cup winning teams with a strong cast. All had incredibly competitive personalities. You remove any one of these elements and a player falls short of those numbers. I believe Fedorov had everything here except the long haul competitive drive. Bure had knee injuries and no period playing on a dominant team. A lot of great talents fell short due any combination of these factors.
600/1,000 is such a rare thing. All planets must align for the right amount of time for the right player to have a chance to achieve that. I can tip my hat to Crosby without blowing off others as having gotten an easy pass. Nothing has ever been easy in this league.