SpaceX is leading a bit of a charmed life. They need to be careful that the odds don’t catch up to them.
Let's see - their first crewed mission certified capsule was destroyed in a test at the Cape and the current crewed mission is in the second capsule, almost a year late.
The testing in south Texas has had a few failures.
Those are just a couple of the mistakes Space-X has made. And they analyze what happened and test a solution to avoid repeating their mistakes.
What Space-X is doing is continuing to work toward their goal.
What the company is NOT doing is wringing their hands, saying failures are not a problem, and stopping the entire program for a single glitch. As has been traditional in space flight in the US from the beginning.
Now, don't think I'm saying Space-X is perfect. I remember Eric Sevareid saying before one of the early Gemini missions that the exploration of space had been extremely lucky, but people had to remember that mistakes would happen, people would die in the exploration of space. Mistakes are unavoidable in something as complex as spacecraft.
No one wants it to happen. Space-X certainly is not cutting corners. But things do happen. Their approach seems to be working.
Not all who wander are lost.