He faced single coverage without a zone. When they threw a double-team at him, that guy had to run all the way over from another player, and no one else could shade off their man to cover the new opening.
Jordan would always get the ball with just one man on him (doubling a guy without the ball was illegal), so he could attack the single coverage immediately. If they tried to throw a double-team at him, that guy took time to get there as long as spacing was good, which led to open shooters and easy buckets.
Then take a look at the guys who were guarding him...overall shorter, less athletic, and less committed to defense than most players today.
Because he was a 6’6 SG/SF 200 pound hybrid freak athlete the league wasnt ready for at that time.
Young mj would still be the most athletic player in the league today
But there are a LOT more guys who have the size and speed to at least stand a chance while defending him.
In Jordan's day, how many shooting guards over 6'4" were there? And how many were athletic and played good defense?
I mean, this is the era where Dan Majerle was on the All-Defensive team. He played hard on defense and all, but really? Dan Majerle?
Every once in a while Jordan would run into a Clyde Drexler, but that was the exception. Fat Lever, Sleepy Floyd, Ricky Pierce, Alvin Robertson, and Jeff Malone were elite shooting guards back then - they'd be considered undersized for the position today. In the playoffs MJ faced guys like (old) Jeff Hornacek, Kerry Kittles, Rex Chapman, John Starks, Voshon Lenard, Hersey Hawkins, Craig Ehlo, Terry Teagle, Paul Pressey, Dennis Johnson, Sidney Moncrief. The quick guys were too short, the tall guys were too slow or too skinny, and few of them had elite defensive chops.
I mean, in 1988, the guards playing in the All-Star Game on the East behind MJ and IT were Danny Ainge, Doc Rivers, and Maurice Cheeks. In 1989, the only two guards on the bench for the East in the All-Star game were Mark Price and Mark Jackson. You serious? It was NOT a good era for SG talent.
Put Jordan in an era with Kawhi, Jimmy Butler, PG13, Tony Allen, Marcus Smart, Klay, Iggy, Tatum, Brown, Josh Richardson, PJ Tucker, Oladipo, Danny Green, Andre Roberson, Jonathan Simmons, Robert Covington, Ben Simmons, Jrue Holiday, Michael Kidd-Gilchrist, Dejonte Murray...that's 20 guys right there who would blow most 1990s guards out of the water on defense. Didn't even mention guys like Josh Jackson, Andrew Wiggins, Shump, JR, KCP - even though they don't defend at the same level they still have so much more size and speed than the second-tier guards that Jordan faced.
And that's before you even take into account the zone schemes that would be used against him, and the far more mobile bigs that would be closing into the lane.
Jordan at least has to work harder in this era. There are just SO many more guys with the size and speed to actually stay in front of a 6'6" ultra-athletic guard instead of being a revolving door.