I've never understood why some people are so insistent on barefoot. Some horses need shoes, some don't. My Icelandic has never had shoes and we ride on hard, rocky ground. He's never drifted to the side of the trails or shown any signs of discomfort. The moment he does he's getting shoes.
I'm not insistent on going barefoot. I am not so foolish as to think every horse I own is capable of rock crusher hooves.
I am no longer able to slide down river banks and dig up the other side, my youngest of four horses is 18 with serious insulin issues, the eldest will soon be 28.
We are all retired so they are all barefoot and run 20+ acres of hills. All of them have hooves plenty healthy to hack a few sissy miles down the road, without issue. Why on earth would any of them need shoes, at this point?
The insulin horse foundered pretty bad in 2012 (the horse the AFA farrier nearly destroyed). With some quality help from someone on this forum and stumbling across two brothers who are really good at their job, this horse rehabbed beyond my expectations, wearing nothing more than Boa boots and partial pads.
Of the four, I have one who could go barefoot where most horses need shoes. Otherwise, were I still hard trail riding in places most people would pass out just looking, one or two of my horses would be wearing rim shoes with borium head nails.
I was taught a "natural trim" way back in the early 1960's by my grandfather, before farriers found a short cut called "pasture trim" so they could hurry up and get on to the next money-making shoeing job
Natural trim is far from new, albeit it has been expanded upon and improved.
Like all things we have to pay for, not every barefoot trimmer is good and not all of them are ethical but, the above article IMHO paints an inaccurate dark and unfair picture of all of them