The point is that the "insomnia advice" is treated as "do literally all of these things, some of which are fairly oppressive lifestyle restrictions, or we will ignore your complaints of insomnia."

There's no recognition that there is variation between people and maybe we should make things easier for a diverse set of needs rather than forcing people to do a bunch of labor to comply with someone else's lifestyle.

I also don't know any former obese people who count calories.