Soft disagree, if you know that no inspection has been done, then you are aware that there may be unknown risks and act accordingly. A safety inspection done poorly creates a false sense of security that can be dangerous.
Failing at something is one of the most effective ways for humans to learn, grow and achieve success.
It is when we learn from ours and others mistakes that we can achieve higher levels of intellect to determine how to be smarter, more kind, make better decisions, be better at our jobs etc for the next time...
Look at history to see how good things have come from massive failures.
We can't escape failure in life and we cannot always control the consequences or fallout from our decisions/actions, but we can keep trying. That is what the above quote is all about.
He isn't saying to do something and fail at it, but to do something and do a terrible job at it is better than to have never done it. You're conflating what he said with sayings like "It is better to have tried and failed than to have never tried at all."