Lee Sang-min's ball handling and dribbling are really poor, so how did he become a legendary guard?

I felt this before and still feel it now, but his dribbling is really high and unstable. He completely lacks that specific low, tight ball handling that characterizes a good dribbling guard..
It's a stark contrast to modern players who have grown up receiving skill training since they were young..
Still, it's amazing how he became a "computer guard"... Even though his shooting isn't exceptionally good either,
he literally dominated solely through traditional guard roles like playmaking, assists, and court vision.