NASA has blown up a whole lot of equipment over the years and gotten a good bunch of people killed while at it, and I don't see you demanding anyone taking Koolaid from them.
Also, to be quite honest, asking for help in figuring out what happened is smart and useful. Not asking for help out of sheer arrogance, on the other hand, is the opposite of smart and useful. They figured out what happened and most likely now know to pay even more attention to it to prevent it from happening again, so, aside from the monetary losses, everything's better than before. Learning from mistakes may be a wholly foreign concept to you, but, thankfully, it's not that to the whole rest of the world.