The problem can probably almost certainly be solved to provable optimality using HiGHS or even CBC - the open source Python package PuLP comes with CBC.
If you want to be seen as the hero who solves things instead of the realist who says why other solutions won’t work, this could be worth exploring.
Of course it can be solved using the proper tools by a domain expert/practitioner (even with chatGPT since the expert will know what to ask).
But why didn't the AI expert solve it using chatGPT? If it has to land to an expert for reimplementation from scratch after wasting a day on reviewing slop, did we gain productivity?
If you want to be seen as the hero who solves things instead of the realist who says why other solutions won’t work, this could be worth exploring.