Investigators also raised issues with the mission's management style, saying that lack of training and experience caused the DART design team to shun expert advice. They also found that internal checks and balances were inadequate in uncovering the mission's shortcomings.
Maybe there is an answer here. Children designed it? But where were mom and dad?
Uh, French?
Actually, didn't the Japanese have a similar problem trying to land on an asteroid and retrieve material?
Then, of course, there was the Genesis solar wind collection re-entry vehice that slammed in to the desert,
thanks to the parachute deployment sensors being installed upside down.
And the NASA Mars (Polar?) lander that crashed because the design team used English measurements, and that information
didn't get passed to the landing team.