The article is also completely wrong about fairly basic history. For example this portion...
Remember, the Soviet and Unified teams only ever beat groups of amateurs
... if factually incorrect. Sure, Soviet teams never competed against professionals in the Olympics, but professionals never played in the Olympics. So that's a moot point.
But they beat professionals from North America in three non Olympic exhibition tournaments (the 1974 Summit Series, the 1979 Challenge Cup and the 1981 Canada Cup).
The Soviets also won numerous World Championships in which North American professionals participated, most notably the 1982 World Championships against a rather deep Wayne Gretzky-led team Canada.