Don't rub your eyes, you read all right. Many fats are good ! Look at the colors on the picture: this is gold for us.
Consider your car: no oil, no run. Same goes with human body. Our whole system needs fats, and different ones.
And we humans are so lucky that we only need to avoid one category amongst many: no transfats.
TRANSfats lead to bad TRANSmission.
Enjoy fish, meat (in reasonable amount), dairy, nuts, avocado, coconut, olive.
And it is a good idea to take into account your origins: keep in mind for instance that Inuits need a lot of fats. Therefore, according to where you grew and what your ancestors ate, you might do better on certain fats. And on that field it is very easy to consider why industrialized foods need to be avoided.