The path wasn't any tougher in those days than today. Probably easier.
http://www.basketball-reference.com/leagues/NBA_stats.html
Rank it by ORTG. Explain why 9 of the top 10 years for ORTG were the years 1984-1995.
Oh, I know...it was the age of atomic supermen, on both sides of the ball. This argument is so damn stupid, and anyone clinging to the notion that era of Jordan's dominance was some insanely strong era goes clutching for straws when you ask them to explain why that era scoring average.
That's leaguewide, and I will assure you it is not because the offensive schemes were more advanced, not because the defenses being better. Defense was worse. Playing more thuggish ball doesn't mean the defenses were better. You think Bill Lambeer would serve any real role in the modern NBA? The game is simply better right now, which is to be expected with the natural evolution of the sport. If you can't grasp that, or refuse to accept it, then fine. Facts is facts, and it's clear that teams scored more efficiently back then because the defenses were worse.
Jordan wows largely for his scoring prowess, and he usually went against guys completely overmatched in the Finals. He didn't have to worry about complex defensive systems. What Lebron is doing today is amazing. He'll be the GOAT by the end of his career, regardless of ring total. Nothing stops this train. PEACE.