I struggle with this because it feels like so many 'rules' in the world where the important half remains unsaid. That unsaid portion is then mediated by goodharts law.
If the other half is 'then slow down and learn something' its really not that bad, nothing is sacred, we try we fail we learn we (critical) don't repeat the mistake. Thats human learning - we don't learn from mistakes we learn from reflecting on mistakes.
But if learning isn't part of the loop - if its a self justifying defense for fuckups, if the unsaid remains unsaid, its a disaster waiting to happen.
The difference is usually in what you reward. If you reward ship, you get the defensive version - and you will ship crap. If you reward institutional knowledge building you don't. Engineers are often taught that 'good, fast, or cheap pick 2'. The reality is its usually closer to 1 or 1.5. If you pick fast...you get fast.