I think you did great btw - I just hadn't heard the interview yet. I think you have to be super flexible. What might be okay for the child one day may not be the next day - or the next several months.Parenting requires special patience and intentional flexibility.
For instance - my son on the spectrum knows he has to eat breakfast. WHAT he eats is up to him. He's very underweight. His doctor and I agree that eating - especially high-calorie - healthy or not - is a win for us right now. He totally had a giant plate of pizza rolls this morning.
I don't think the rigid parenting style (in my example, 'you are going to eat what we eat or nothing at all') would go very far in an autistic household no matter what situation it is. You have to give both your child and yourself grace. Days are going to be rough sometimes and they won't go how either of you wanted. It isn't easy being on the spectrum and isn't easy being a parent to a child on the spectrum. You both do your best each day and no matter how it goes, I make sure before bed that I tell him how special he is and how much I love him.