Sorry, but that wasn't what you said. You said range was the weakness of his game, which is, to use your words, "so absurd that it borders on luncacy"

. The foundation for Jordan's offense was smart decision making, and whatever got him the best shot, but let's not act like he wasn't one of the best midrange shooters that ever laced up shoes. His 20 foot turnaround is probably the most deadly shot by any player of all time, and he seemingly never missed a shot around the area between the bulls. His midrange game was so good that you had to defend it vigorously, sometimes with several people, which opened up lanes for him. He didn't just drive to the rim on every possession. If you took away any two facets of Jordan's game, he'd likely have been a hall of famer on what was left.
I don't know exactly where the 80% figure came from, but I'm sure Jordan could hit a higher percentage from that range without defenders on him, as can many pros, which I think is where that part of the discussion comes in. Only a few guys can hit threes at a strong clip, but a far greater number can hit an equal percentage from three to five feet closer. When your scrubs can make a shot from 20 feet away, you can't dare them to take it all day long. If your goal is truly to spread the floor to allow your other players room to work, that's sufficient.