research team only for north

i think ATGC had set the research team only for north. they used to notice their mistakes only. We can see this from last three episodes.first gave east extra points.then east made 4 mistakes in "bhumbro" song but wasn't noticed. then west for the song 'o ri kanchi'they did not sing the complete mukhra and today again west for "kuch na kaho" song........ was it the grand finale......hosts were teaching the players to not make mistakes but did it by themselves. i think they used to say these words to the children because they wanted to say this is their job(to make mistakes)