What did they learn from you giving them reheated crap over and over until they ate it? I'm not entirely sure they learned anything other than their parents have to control what food they eat... It doesn't impart the neccessary nutritional knowledge for successfully eating healthy when you're older, and it creates an adversarial relationship between your kid that involves food. From my experience that's just one of the many first steps to creating a child with disordered eating habits.
The people I know that do this "no negotiation" method, their kids sneak snacks from friends, neighbors, school, and wherever they can get them. They also have no idea what is good just that they are forced to eat certain foods they don't like. They constantly are on alert about whether their parent is around to by ask if it's okay to eat whatever snack/food because they don't know, or are trained that only their parents can know, what is good for them and what isn't.
Basically it has the opposite affect from my observation of creating adults with good nutritional understanding. Involving your kids in food preparation, giving them agency over what they have for dinner (like having them pick the meal and food prep once a week), and educating them on where food comes from, nutrition in general, and just food overall will get you further than any sort of dictatorial bullcrap where you slam a plate down and say, "eat it cause that's all you get."
I just don't understand the thought process that goes into that sort of parenting. Would you like it if someone did that to you? Would it help you understand why one food is healthier than another? From my perspective it isn't teaching them anything other then "my parents know best." Which doesn't help them understand why they are eating something or what is healthy or unhealthy. It also churns out a bunch of emotions around food that don't necessarily exist beforehand. Those weird emotional attachments to food is a major factor in a lot of disordered eating habits...