First of all, that team was wack. the singer was wack, they had weak josh, and they weren't clean.
Second, the judges did not even judge them against the rediculously entertaining stuff, they judged them against other bhangra groups! You don't think kiran kher and the other guy (i forget his name), know bhangra? they are punjabi man...they have probably seen the nasiest teams at india day functions and shit. They are famous, they probably see this all the time. Growing up and as stars. They knew what bhangra was supposed to look like, and sound like, and they knew this team was a B- at best. They did not get tricked by the "bachay" bullshit. So what if they are kids? you ever seen kids in india dance and sing? They would run laps around this team. Jawani warriors would run laps around this team (possible overstatment alert). These judges were good.
third, all those judges were down with Bhangra, they had a punjabi audience, and they still did not pass? What else do you want? Then they made excuses? Bachhai hain, lights? wtf? haha, jw/shan-e are kids, and they love the lights. these guys weren't prepared. a team is a team, clean is clean, whether it be america, candada or india. they just sucked, and that's no one's fault but their's.