Needless to say, Jordan was unstoppable at that time. Together with Pippen and Rodman, the three giants are invincible in the whole league and have both offensive and defensive skills, which is a nearly perfect combination.
In addition, the coach at that time was Jackson, and the Bulls cooperated with his triangle attack, which was the icing on the cake. You can imagine how difficult it was for other teams to beat the bulls at that time.