I've worked in aerospace. The organizations (both public and private) would all claim to fail "within the confines of a safe environment".

One small BS detector is when there's some unplanned/unmitigated test outcome that gets characterized as a "test anomaly" rather than being transparent about the details.

>they've already mapped out the failure modes and are able to prevent them when it really matters

This remains to be seen. The shuttle also had all their failure modes mapped out. As did CST-100. Yet massive failures still occurred.