Interesting how there's a major shift in the knowledge about risks of things like sugar, cigarettes, alcohol, etc. And it usually turns out there was an industry group involved in sort of a coverup. The lesson here is to take any health claims or dismissal or risks with a grain of salt when there's a big industry behind it.
One of my favorite examples of this is how coconut oil is advertised all over youtube by thousands of influencers as a superfood that must be a part of a healthy diet. (Especially since it's hardly an oil in my opinion -- it's partially solid at room temperature) There's absolutely no reliable evidence that coconut oil has any beneficial effects on the human body, and I really don't see why anybody would believe that…
I suspect that high fats are fine and high carbs are fine, but having both high fats + high carbs leads to health problems. Fat heavy leads to keto metabolic state, heavy carbs lead to the other metabolic state. Having both at the same time is the issue, my opinion.