I don’t know. Koreans get much more emotionally expressive than, say, the Japanese. Japanese people are the stoic ones who suppress their emotions even after disasters. Koreans are the ones who wail and cry when they are interviewed. (But Cho is definitely not a Japanese name!)
While a concussion and a broken leg are serious medical conditions, the outcome could have been much worse for the boys. Accidents involving drunk drivers can be extremely deadly. And worst of all, the drunk driver is often the sole surviver. Drive-through liquor stores should be banned everywhere!