It should be noted that, being strictly suborbital, both the challenges and risks are orders of magnitude lower than even a launch to LEO, and that unlike many

It should be noted that, being strictly suborbital, both the challenges and risks are orders of magnitude lower than even a launch to LEO, and that unlike many space programs, they have quite a bit of prior history and information to draw on. I don't know whether this will be enough to reduce risk to near-NASA levels, however. I am curious as to whether those odds cited are of partial successes, safely-aborted launches, or fatal failures.