Not it's not. You are right. It takes a lot longer to learn those habits and apply it in a useful way. It's taken me ~9 years and of taking it more seriously. I still f up from time to time. Just not nearly as much as when I started trying to get my shit together. (Even my test results showed overcompensation in my attention problem lol)
You still need to develop those skills on meds. Which takes practice. Meds make it easier to practice.
I think a lot of people on these communities are at a point of discovery and realization. That there is a big factor (ADHD) causing their struggles in life. That they are not "just lazy and undisciplined." A phase that can look like self-victimization and excuses.
Thing that worked well for me btw, is the ADHD guide on HealthyGamerGG. The name sounds stupid, but it's the online name of a psychiatrist with experience with ADHD patients, and he takes a hollistic approach. I usually despise every form of spirituality, but he managed to filter out the "woo woo" (as he calls it) and stick to the practical aspects of meditation and how the mind works. Helped me understand my issues and how to handle them better.