There is a reason why Pakistani dramas are world class. They are made without any interference from fans and then presented to the audience. And the audience is mature enough to accept the drama with all it's twists and turns, and not only the ones which are to the fans liking. That defeats the whole purpose of creativity. NK is a Show, NOT a FF. Please understand the difference.
P.S.
Neil had pre-marital s**. Big deal. He has a child out of wedlock. Big deal. Every love story is not black and white. To keep it interesting, it must go through it's share of ups and down. If everything is hunky dory, tu phir drama kahan se aaye ga. I for one would love to see a story where the heroine has to deal with her husband's child from a previous relationship, albiet executed in a mature way. Just chillax guys and enjoy the show.