@mijustin The "move fast" approach works well only when everyone involved is focused, motivated and know what they are doing. They know the risks, they know what to look for, they know how things work. An example would be a race car team.
Instead most managers opting for the "move fast" approach are like someone who had a few drinks at the bar and now thinks they are world-class drivers. So they get in the car, drive too recklessly and crash it.
And it doesn't help that toxic business cultures tend to reward this sort of behavior. It's flashy, it's "manly", it's "decisive", it's "passionate". So disasters caused by such behavior tend to be forgiven as "we did our best but luck was against us".