No, is generally about discipline and building good habits. Willpower or lack thereof is largely irrelevant. I'm not convinced that willpower is even a real thing.
What do you think discipline is if not willpower? This might explain why we're talking past each other.
I can do the exact same thing a hundred days in a row as long as the circumstances happen to be the same. And I can try to make them as similar as I possibly can. My lights come on at the same time. I eat the same food. My clothes are in the same place.
But the second something happens that I can't control, the night the wind howls all night, or a cough wakes me up, or for some damn reason, I wake up hungrier than normal, it doesn't matter how many times I've done it. None of it is automatic. It's all new now. All of it requires decisions. It's like it was never there. And that's why, frankly, I don't ever get to 100 identical days.
Your brain does something different with whatever you mean by "discipline and good habits" than my brain does. And that's really cool. It sounds awesome to have a brain that does that.
It also sounds way easier and like it's not something you actually deserve any credit for, in the same way that my learning how to speak before I was a year old or read before I was 3 is just "a cool thing about my brain" and not something I deserve credit for.
The difference is that because your cool thing about your brain is common, people who don't have it are considered "less than" by people who do, whereas my cool thing about my brain is uncommon, so people looked at me as "more than" other people. Both are baseless. You and I have no more control over having these advantages in our brains than we do over our height or the color of our eyes.
This doesn't answer the question on any level. There is ALWAYS a choice. Where does the choice go when you remove it? What exists in its stead? How is there ever not a choice?
Dicipline and the ability to build good habits is out of the window for a lot of people due to different illnesses. You come across as trying to sell snake oil to people with a heart attack.
If you try hard enough you can always find a plausible sounding excuse for failure. Discipline and good habits are the most effective way to prevent heart attacks in the first place. While there are a tiny fraction of people with serious mental health conditions or developmental disabilities which prevent them from making progress, that hardly applies to anyone on HN.