You would think city Permits for such structures with large-motor loads would require electrical engineering, and that any changes would be supervised under engineering supervision. Therefore engineers could be blamed for overheated conductors.
I believe its more likely changes during the building process escalate difficulty with engineers, who lose credibility with owners, resulting in the builders defaulting to their best application of NEC-ampacity tables, historically miss applied where motors must be added to derating schemes.
I also believe, unless you are an eye witness, or helped remodel electrically-driven equipment that resulted in death, non-disclosure clauses --used for years in injury & casualty settlements-- minimize informing the public domain, who blissfully engage in further risk.