Couple thoughts from someone who has thought about it a lot and tried a fair number of different things.
1) Shoe companies pretty obviously have no scientific basis for most of what they make in terms of injury prevention (and only a little in terms of performance). One way to tell is to watch them completely change everything they do to move with fashion trends. Another way is to watch them constantly cycle through models of shoes when there is no good reason to discontinue the old ones. Another way is that you'll never hear them performing studies to actually see whose shoes prevent injuries the best.
2) In this America that we're living in, sometimes corporate interests go against finding out what is actually good for people or helping them get it. Look at pharmaceuticals and prevention vs cure. Shoe companies want to sell you shoes at the end of the day, not keep you healthy. Running store employees might say they want to keep you healthy, but most of the information they have to go on comes from shoe companies. So, few people besides academic scientists are actually making progress toward finding out what causes injury. (This is why we have to publicly fund research to make progress in some long-term areas.)
3) Humans obviously "evolved to run barefoot" -- there is no alternative except to argue that humans shouldn't be running at all. However, the implications of this on what you should do are not clear at all (more below). Except maybe that kids should be allowed to strengthen their feet and use them as much as possible growing up.
4) Running barefoot has many facets and is not yet well-understood scientifically. For example, you mention zero-drop. Zero-drop is a marketing term used by shoe companies to try to take control of the barefoot running trend and profit from it. In my experience, more important is how you can feel the ground, get feedback from it, and adjust your stride. This comes up a lot with the term "proprioception". It is a huge part of the barefoot experience, yet companies sell shoes with these rigid plastic soles you can't feel anything through as "barefoot style" just because they have "zero drop".
5) For an adult raised in shoes, and possibly with tens of thousands of miles in shoes, this person is now adapted to shoes. Yes, their biology may be adapted to barefoot running by nature, but they are adapted to shoes by nurture. Switching is difficult. So you get tons of people who rush into it, get injured, and complain that minimalism got them hurt. You get a ton more who argue "shoes are working fine for me, why would I switch?" And maybe they're right.