Minimalism is not barefoot. They're different. I run differently barefoot than I do in even VFFs.
I injured my Achilles by going minimal. I even had a fairly slow transition. The problem is I started it after my body had developed. I spent 20+ years mostly in trainers. Barefoot running may be natural, but I'm not natural. I spent the 20+ most impressionable years of my development doing something other than barefoot. So going barefoot now is quite a stress and very little is going to change that.
If you're fresh and limber, you can get away with wearing minimal shoes or even going barefoot for a while (a workout or race). But unless you went minimal from birth, then I don't think you're going to be able to do it daily and avoid injury. Forefoot strikers might be the exception, because they land close to the same regardless of the cushion. If you're used to midfoot/heel striking in shoes, then forefoot striking barefoot does not come easily. And if you're heel striking in VFFs then you're doing it wrong anyway.
There are basically three kinds of people who wear VFFs.
-People who spent a lot of time barefoot, minimal, or forefoot in their younger years and can do it now fine.
-People who don't run enough in them to ever get injured anyway.
-The typical runner who hears stories from these two previous groups, wears them, and is subject to high injury risk.