A parallel from the world of motorsport…
(This has been said here before many times but I’m bringing it up again because it’s relevant to the arguments about the EXO. I fully expect that a number of people will respond that it’s (1) not relevant or (2) doesn’t address the fit issue or (3) other 'but…'s that illustrate my point better than I ever could.)
A HANS device is a rigid head and neck support (hence the acronym) that is used as a safety restraint in motorsport. It’s a rigid carbon-fiber collar-type thing that goes behind your head in the car. The purpose of the HANS is to protect a driver from a type of whiplash injury - basilar skull fracture - that was responsible for a number of deaths in racetrack crashes.
The HANS was developed in the 1980s. Quite early on, it was known that only a rigid device would protect from a basilar skull fracture, although other technologies like air bags were being designed and tested (IIRC this was unsuccessful).
Even though the test results were favorable, the HANS was not embraced by the motorsport community. Drivers hated it and spoke out against it. Drivers claimed it would make them less safe, that fit was an issue, it was uncomfortable, it would be more dangerous in a crash, that EMS wouldn’t free them from it, etc. No safety tech or motorsport company would manufacture or sell it. The inventors had to strike out on their own. Meanwhile, drivers were still dying from basilar skull fractures. Not in alarming numbers, but a death every now and then, as with eventing.
Then in 2001, Dale Earnhardt was killed at Daytona. Although while alive, he’d referred to the HANS as a ‘damn noose’, that same damn noose might have saved his life.
Over the next few years, the HANS (or another approved form of rigid head and neck restraint) became mandatory in most forms of motorsport racing. FIA, NASCAR, even monster trucks.
But this is how safety often works. There is risk and there is our perception of risk, and those two things don’t often act in concert. We draw our own lines for how far we’ll go to be safe.
For example, there are far too many people who don’t wear seatbelt in moving vehicles. This raises your risk of death in an MVA by quite a lot and accordingly, most jurisdictions have seatbelt laws but people still make their own choices, even when their choice is unequivocally a poor one. But these people have decided that seatbelt are a step too far for them.
The helmet situation has been much the same, except that now more rules are in place to ensure riders wear proven head protection. But as I mentioned previously, in the 1990s horse people were given column inches in COTH to spout nonsense like Pateys were safer, helmet harnesses were dangerous, and their heads got too hot in an approved helmet. Those arguments sound even stupider now but at the time, there was obviously something acceptable about them to the equestrian mainstream.
With body protectors, it seems that the EXO was a step too far for its time. Some people on here posting about the fit never actually tried the EXO. I understand someone like PhoenixFarm’s position - she wanted to try but wasn’t in the fitting range but she’s also very forthright in saying that her measurements are unusual. (I have that issue with my feet and know that very few manufacturers will ever make footwear that can contain my foot. I don’t rail against shoe companies, I just accept that not enough of the population has feet like mine.) I’ve had at least half a dozen people (of different body types) try on my EXO and I think all of them have fit into it, although some would have needed a different size. Not all of these people are built like me and my EXO is on the small-average side of sizing so I’m led to believe that the EXO would and did fit a reasonable cohort of the eventing population.
As riders, we deal with perceptions of risk and actual risk on a daily basis. Marigold hit the nail on the head when she referred to the insecurity of the start box, which is exactly what I meant. Accidents are a great equalizer - a rotational fall doesn’t care who you are. That is a reality we all have to face.
But in our daily riding and horsecars, we all have our own guidelines for safety. Things like riding alone. Jumping alone. On which rides you’ll add your body protector. Clipping a horse alone in the barn. There are risks inherent in just about anything you can do with a horse and we all, consciously or not, have our own risk management guidelines. Which means there’s a point where we’d see ourselves crossing over into too many or unnecessary precautions. Based on experience and information (of varying quality) those individual rules will change over time. For example, I went for about 15 years riding every single ride with a body protector but now don’t wear one on my older horses unless I’m hacking out or jumping. But that was my own internal rule, based on my life and work pressures as I could not afford any downtime at all.
So with the EXO, I see the same initial pattern of resistance to a true safety technology, followed by more accidents in which the EXO could have been a mitigating factor, followed by renewed interest in the EXO, which will hopefully be followed by a new and more accessible version of the only body protector to date that could protect your chest from massive crush injuries and blunt force trauma.