I'm not sure what you mean. Those people put in work to be on there. I'm not about that life. And I've had a solid regiment for years.......
Wow are we really talking here about how great and awe-inspiring your hair is but how you refuse to show it to the world (and to us) because you are not about that life?
Anyway, to address the matter at hand, I think that it's an ignorant and naive position to have no clear definition and understanding of what healthy hair is and so resort to equating it to hair that looks or behaves good.
First of all because "good hair" itself doesn't have a clear definition, even if in this specific context we defined it as hair that looks the same level of great with all sorts of regimens and products. Which we are not even sure truly exists.
If you stick around here for long enough and read through and understand people's experiences, stories, struggles and triumphs, you will gradually come to understand what I mean. And you will come to the realization that perfectly healthy hair can be and is definitely often picky about products and can react differently to different ingredients according to its characteristics such as porosity, strand thickness, curl pattern, etc. And healthy hair can indeed go through times when it doesn't behave or look good if, to give a few examples, it's exposed to products it doesn't care for, or it has build-up on it, or it goes through a phase of moisture or protein overload, etc.
And to make things even more confounding for some, some damaged non-healthy hair can look good if you do the right things to it, for example if you coat it with silicones, if you apply a lot of heat to it, etc. And you can then perfectly post photos of it on instagram and claim that you have put a lot of work on it to get it to where it is now over the years.
I hope I made myself clear this time.