This is “the tire shop doesn't have a torque wrench” level shit. If it's an oversight, it's an oversight due to incompetency, not because a good team just happened to miss something in a crunch. Another possibility is that the issue was raised and management said to fix it later, and because software “engineering” isn't a real engineering field that holds its practitioners to any duty of care, those responsible (the engineers) just went along with it.