Unfortunately, such results about certain kinds of fat have been wrongly used to justify bad nutritional advice that any fat is unhealthy.
From my personal experience, I am convinced that eating the wrong kind of fat can be harmful.
For a large part of my life, I had been eating large amounts of dairy products. Some years ago, at a medical consult, I was surprised to learn that I show signs of atherosclerosis.
My best guess was that this must have been caused by eating excessive amounts of saturated fat. Based on this supposition, I have changed immediately my diet. I have stopped eating dairy products and from that day on about 90% of my daily intake of fat is provided by a mixture of vegetable oils, extra-virgin olive oil with cold-pressed sunflower oil in the proportion 5:2 (the latter is added for an adequate intake of linoleic acid and vitamin E). Typically about one third of my daily energy intake is provided by fat.
One year later, there were no longer any signs of atherosclerosis and there was a very noticeable improvement in my peripheric circulation. Since then, my cardiovascular health has only improved, so I presume that my guess about the saturated fat from dairy being the culprit must have been right.
It's (probably accidental) motte-and-bailey rhetoric where someone provides the motte "fat isn't bad for you" and then grants themself the bailey "therefore I can eat saturated fat ad libitum" when in reality you'd want to minimize saturated fats while allowing unsaturated fats in the diet.
Yet "low carb" is basically a euphemism for eating butter, eggs, meat, and cheese rather than unsaturated fats. The whole thing seems built on that motte-and-bailey.
Now theres lots of grifters, but the core idea of keto is an incredibly powerful dieting strategy for many people and has very positive effects on symptoms of a number of difference health problems.
I never wrote "it's all the same". I did write that it may be something else entirely, and that some of the more likely suspects are not investigated with the same intensity--probably because a conclusive answer would upset many apple carts.