Everyone has a natural sleep schedule, or chronotype. Instead of forcing ("tricking" in the author's words) yourself into an earlier pattern just because of the expectations of those around you, or the idea that being early is universally more productive, it’s often better to just let yourself be a night owl.
I must have a siesta however, and organise my life to allow this. I wish siesta was far more accepted above sleeping late or rising early.
The cultural aversion to a "night owl" shedule is pretty obvious though given the historical importance of farming and animal husbandry, which are dependent on the daily cycle.
It depends on how you define "natural", virtually nobody stayed up so late before the invention of electricity, screens and especially internet. People just got used to this unnatural cycle, do it long enough and you'll think that's how your body is supposed to work
In prehistoric times, night owls could keep watch and protect their tribes from nocturnal predators, and in ancient times, they could protect their cities from conquerors trying to sneak in at night. There was an evolutionary benefit to having both morning larks and night owls within our species.
Humans adapt extremely well to their circumstances. You can obviously push it too far, but adaptation itself is natural.
Go for a two week long hiking/camping trip and you'll see what's natural, you'll be fast asleep by 10 and awake at 7 every single day.
Most people calling themselves night owls just artificially keep themselves awake thanks to screens, what's the "tool builders" to "mindless media consumers" ration these days ?
They're too lazy to fix their schedule or too oblivious to the damage they inflict themselves, I can guarantee you people went to bed much earlier even 60 years ago compared to today
Further, there's nothing inherently good about things being natural. Again, your patterns of exercise, your nutrition, and virtually every other aspect of your health is quite different from that of a hunter-gatherer, it would not be surprising if behavioral changes to adapt to differing circumstances would be beneficial.
It is just that narrative of early people being rewarded more does not hold up to anything I see around. It is working lage everyone wants to see