You're condescending for no valid reason and I will tell you that what you say is not correct. Models superseded "plumbing" tasks and went well into the engineering grounds a generation or two ago already. Evidence is plenty. We see models perfectly capable reasoning about the kernel code yet you're convinced that game engines are somewhat more special. Why? There're plenty of such examples where AI is successfully applied to hard engineering tasks (database kernels), and where it became obvious that the models are almost perfectly capable reasoning about that tbh quite difficult code. I think you should reevaluate your stance and become more humble.