I've watched the show from season 1. Yes, there is a definite bias towards so-called "street" dancing.....largely a series of jerky movements that can't really be called dance. The problem isn't that there may be a cultural basis for this type of movement, it's that the bias is so clearly and blatantly obvious. The other thing that grates are some of the judges comments. I've watched many of the judges own videos. It's clear that at least two of the judges can't do, never could do, many of the dance movements they "expertly" criticize. I watch to see the dancers.