People that can't get tubeless to seal at road pressures are using the wrong stuff. The only time I've had the sealant fail is when a boot would have been necessary anyway. Once, with 25s [MENTION=471318]95psi[/MENTION], I got a double puncture from a large construction staple. It sealed around the staple prongs, but more air was lost on every revolution, when the staple hit the ground, until I stopped and pried the thing out. It sealed, I topped off with the mini pump and did another 50+ miles.
I do agree that mounting/removing can be an unpleasant learning curve, but I haven't needed anything but bare hands to mount and one tire lever to remove.