I am in chemical and material handling stuff and it’s the same. What amazes me is when the project manager can’t allow slack where slack is perfectly fine and allows slack where it isn’t.

One guy I will never forget had endless meltdowns about tiny tiny stuff in software and completely forgot that water pipes need heat tracing until the insulation was already installed. Whole project, multi tens of millions of dollars, died because of that. On the plus side before it died the password on the HMI was 8 characters long and required a number and a punctuation symbol.