Haha I think that's just ethnic cultures in America in general. Example-the way Spaghetti Pomodoro is made at a local Italian restaurant is not how it is made in Italy.
None of you are going to agree with me on this and I'm gunna get shit on-but oh well. We have to remember that the crews are going to put as many "Bollywood" steps as they feel comfortable and as they see fit. Avtar Channa (sorry if that is spelled wrong) himself could teach one of these teams bhangra-but if they dont see it fit to the song that THEY want to dance to, then frankly THEY dont owe us anything as long as there is some sort of influence-no matter how small it may be.
Once the step(s) are in place, it is all up to overall presentation. Its easy for us to focus on the Bollywood steps because we participate in the culture every day. But the teams are judged on overall presentation and execution. Pooja before posted that the girls doing giddha did it wrong-an indication of poor execution. If they didn't do that correctly, then why would they add more and be at higher risk to get booted? The attempt of adding more Bollywood into the performance is a poor decision if a team isn't able to execute it well-so I'm not surprised that most teams chose to add no more then two dance steps and stayed in their comfort zones.