I've run tubeless on 25mm tires at 105psi (I was heavier at the time) and never had a puncture fail to seal on those tires, even a double puncture from a large construction staple that I had to pry out with pocket knife. Much of the "tubeless doesn't work at road pressure" stems from early road adopters thinking that Stan's, which works great at MTB pressures, should also work at road pressure... but it just doesn't.