Do you agree with 'never say no' parenting?

My cousin posted this earlier today because she doesn't believe you should ever tell a child no.

I know this is becoming a more and more common way to parent. I personally just don't understand it. There are a few things in this list that you should definitely say no to not try and find a different thing for them to do, I.E. hitting you. Our job as parents to not only teach our children right from wrong and when is to far but also that they have to right to say no themselves. It seems more damaging to be that they never be taught you have the right to say no than it is to tell them no. Not to mention that never telling a child no results in a child who may or may not ever listen to you. Both of her children don't listen, are aggressive, have trouble in school, and she has no control over what goes on at home. She posts statuses that blow me away, for instance the other day her child decided to pretend to be deaf when he went to the doctor because he didn't want to be there and instead of taking control of the situation she paid hundreds of dollars to take him to a specialist even though she knew he was faking because she couldn't get him to admit he was faking and behave at the doctors office. She also gets called to his school all the time because he'll get physical with other kids in school and she just gets stressed out and panics and can't figure out the issue. Don't get me wrong. I think she is doing the best by doing what she thinks is right but she and so many others are raising these kids and will be sending them out into the world. A world my children will also be forced to participate in and it worries me that someone who was never taught that they have to listen to the word no will be around my daughter and son. What are your thoughts?