Isha and Salman were incredible today!! They sure are one of the best but they work hard as well to be that.
Isha is a trained dancer in few traditional dance forms...but not in all of them. It is just as tough for her to learn and adapt a new one every week. Just like everyone else you see an improvement in her also. The first dance she focused on what she was good at...the second she tried to step out of the box..and so on. Also her expressions have improved over time. What works in her favour is that she is very flexible but she and her partner have worked hard. You can tell by her focus...
That said..every JDJ season there has been a mix of stars who can dance very well to non dancers. If you think Isha being part of the competition is unfair...then dont you think gurmeet (for ex)who is a better dancer than few others also should be considered unfair competition. After all he has trained in martial arts and danced (bollywood) quite a bit?? Sanath (ex) has no experience period!!!
In the end of the day its the public voting that matters...regardless of what the background is, how much you improve on the dance floor matters.
PS- I took gurmeet's name as an example...not intended to put him down in any way. He is excellent in the show...and is improving more so every week. All the best to him and the rest of the contestants