I don't really see this argument playing out. As much as I was trying out copilot — if I ask it to make "todo app" it will make me a "todo app" it will not hal

I don't really see this argument playing out. As much as I was trying out copilot — if I ask it to make "todo app" it will make me a "todo app" it will not hallucinate making "calculator app". Duplicated code or tautological tests are not going to sink the business. From my experience I have seen much more problems and hours burned caused by wrong application of DRY than from duplication. I can say that in regulated environments duplicated code that has no abstractions is even preferred.