I disagree, but won't downvote.

Failing fast is a virtue. Failing catastrophically is a disaster.

We work fastest when we trust our tools. When our tools fail us, we're forced to revisit them entirely, which slows us down. Incorporating a margin for error and defending in depth are ways to move forward efficiently.

Blue Origin's motto has the right tack. "Step by step, ferociously."

Killing our best and brightest after they express concerns about their safety? I hope that's not what it takes.

I guess what was meant was: "progress means sacrifices and sometimes people die". Nobody killed them on purpose...