I'd question your assumption that the software would be "great". I think we're seeing the volume of software increase faster than before. The average quality of the total volume of software will almost certainly decrease. It's not a contradiction for productivity in that respect to increase while quality decreases.

I'm honestly not a big fan of when people throw numbers implying a high degree of rigor without actually showing me evidence so I can judge for myself. If you're this much more productive, then use some % of that newly discovered productivity to show us.

But building software does tend to come with a lag even with AI. And we're also just more likely to see its influence in existing software first.

I'd rather be asking where it is AND actively trying to explore this space so I have a better grasp of the engineering challenges. I think there's just too many interesting things happening to be able to just wave it off.