What is wrong with the eyes of the umpires in the Korea vs. China game?

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I'm watching the highlights
If it was a split second or a blurry moment
I might even understand
But the batter stepped on first base and took one or two more steps
And it looked like the ball arrived, yet they're just sitting there calling it safe
Wow....
Seeing things like this
Makes me realize how much of a blessing video reviews, challenges, and ABS are
By the way
I wonder if they can play well in the final against Japan(?) [fake]