Bless you for opening the topic, I was waiting for someone to do it!
Well, IMO, Sushant did not deserve 30 at all.
Dance wise - it was definitely not Sushant's best, it was plain evident. He has done very very similar steps before. Shampa's somewhat agile body language in her depiction of a mother was not gelling well. There were some portions where there was no dance at all, they were just standing and depicting a scene. Choreography was medicre only, no typical Shampa wow steps at all.
Emotion wise - Sushant fans knew that he'd lost his mother.So all the while in the dance they must have been seeing another angle to the performance and a greater depth to his emotions and expressions.
But I was totally unaware of this, and to me, the dance was not a tearjerker at all. I did not get the mother-son vibe from Sushant and Shampa at all. Mainly because of Shampa's look, body language, costume. That "mamta" feeling was not coming across well, atleast for me. So on an emotional level also, it failed to tug at my heartstrings. Could have been SO SO much better, considering Sushant and Shampa's standards.
To be honest, I felt only Ankita deserved 30 in that episode, coz I couldn't find any faults with either the choreography or dance, it was perfect and deserved a perfect score. Ragini was very good but these guys have never ever gotten their coordination right, so she didn't deserve 30 imo, 27 would've been enough.
To be more honest, I felt Sushant deserved 30 for "chumma chumma", I found it thoroughly enjoyable, didn't notice any goof ups.
@tiya229 : Sushant has a different standard compared to the rest. If any other contestant would've done this performance, they would have deserved more than 30. He's much beyond the rest and since judges usually evaluate on an individual rather than comparative basis, it seemed biased to give a perfect score for to a performance which could've been much better and had that 30-ish element missing.
Further, there have been posts on Chang and Ragini not deserving 30, but Sushant has whole topics made on him because he's more popular here and more under the scanner in this forum.
On a side note, some fans really need to know the meaning of the word "opinion". It's not the same as "hating" or "bashing".