You really think the league back then is comparable to the league now? GA is also a terrible stat to judge a player on, GA is a team stat.Makar in these playoffs has been on the ice for more Goals Against than Karlsson in 2017, and he's played 5 less games than him too.
So according to you Karlsson only put up 18 points in 19 points that year, Makar put up 22 points in 14 games. So I guess they’re not close offensively then.