And as you know I eat HFLC for medical reasons... I don't "track" so I readily admit that there are plenty of days that I likely fall into the realm of higher protein and lower fat, and I have higher carb days sometimes because there are carby foods that I enjoy but must not eat often because thy have a negative impact on my medical issue. But for the most part... HFLC.
However, in your last paragraph I think that you too readily dismiss (actually just fail to acknowledge) the segment of the population who do need, if even for a short time such as a few months, to go into the higher fat areas of 60% and above to moderate hunger issues and especially binge eating patterns. Over and over I see women who venture into HFLC who are amazed at the control that they are able to gain over their eating. And we are talking serious out of control eating patterns here, not just normal cravings or hunger from calorie restriction. The time they spend in HFLC gives them time to examine triggers, become mindful and find methods of dealing with those trigger situations, etc. These people have said over and over that they never felt in control enough, or clear enough, with other eating plans to be able to explore their deeper food issues before HFLC. There is real value in the increased satiety brought on by the HFLC extremes, even if that comes with a slower loss rate for some people.
And nothing says that those people have to stay HFLC forever... they can easily take the important lessons that they have learned about their eating patterns and transition to a lower fat, higher protein version of the diet once they feel more in control, when weight loss slows, or when closer to goal weight when higher carbs is just generally more effective.
It's not a one size fits all world.
Sometimes finding what works for you DOES mean high fat.
At least for a while...