Big Tent Container Gardening
I've said: The constellation of potting mixes is very large. At the other extreme from synthetic mixes, we have whole families of organic and permaculture styles.
As I've said, I think the fact that all these styles are used by commercial growers means that they can and do work, and provide useful ROI.
There are commercial growers of greenhouse crops using synthetic mixes, and people using compost as well.
Whatever your interest, you can probably find a model that works.
I've also noted: We should also be aware (self-aware) that the internet is great for spawning social groups which rapidly adopt group beliefs.
Permiculturalists reinforce each other on hugelkultur and tree guilds. Hydroponics groups follow their own trends. Followers of a particular garden book may trust very shallow "raised" beds. Trust in a particular potting soil recipe may become a cultural value.
I think a lot of these things work, and across "cultures" provide healthy food for many.
But there are many ways to skin the cat.
That's not controversial, is it?