It's a beautiful film, but it says nothing about class struggles and upward mobility that hasn't already been covered. I say this from a Western perspective, so I cannot speak to how the film was felt in South Korea. But as a Black American, I was... bored? I think the film's resonation with White American audiences speaks to this point even more. It won the Oscar because it is a criticism of Korea, not of America. We sit at a safe distance and revel in the "bravery" of the film because it allows us to ignore our own flaws. It is by no means a bad film. Just not a particularly interesting one.