It was a task. Just like shaving Aman's head was a task. Just like asking Diggi to wear a swimsuit was a task. Just like asking Rimi to cut her hair was a task. Kish could have said NO like Rimi, yuvikai and Diggi did. But she chose to do the task instead. It was her call. She herself made it 'inhuman' by doing it for 3 hours. Nobody forced her. Rishabh did not tie a collar around her neck and force her to do it. She did it because she wanted to win. She brought it upon herself. Whatever 'inhuman' treatment people(especially Kishwer fans) are crying about, Kishwer had full power to avoid it.
And if you have a counter argument that she did it for her team and wanted to win then Rishabh too wanted to win. He was just doing whatever he was to win. Jhaadu, bartan to sab kar hi lete, he had to give something jo wo na kar paayein. He was provoking her to give up.
IF SOMEONE ASKS YOU TO DO SOMETHING AND YOU DECIDE TO DO SO, YOU ARE RESPONSIBLE FOR THE OUTCOME AS YOU GAVE YOUR CONSENT.