A big reason for that is the surplus of high-end offensive talent around the league. It seems like every team has at least one player that is capable of scoring at a high rate. However, some teams are lucky enough to have two or more players that can.
The Bruins duo of David Pastrnak and Brad Marchand are the closest to the Oilers duo at 1,044 combined points. Pasta and Marchand make up two-thirds of "The Perfection Line, " which has been one of the league's for a few years.