Why haven't we seen an explosion of new start-ups, products or features? Why do we still see hundreds of bug tickets on every issue tracking page? Have you noticed anything different on any changelog?
I invite tptacek, or any other chatbot enthusiast around, to publish project metrics and show some actual numbers.
At that stage, the real value will lie in the remaining 10%—the part that requires human judgment, creativity, or architectural thinking. The rest will be seen as routine: simple instructions, redundant CRUD operations, boilerplate, and glue code.
If we focus only on the end result, human will inevitably write less code overall. And writing less code means fewer programming jobs.
Call me naive, but you'd think that these specifically want to demonstrate how well their product works. Making an effort to distinguish PRs that are largely the work of their own agents. Yet, I am not seeing that.
I have no doubt that people find use in some aspects of these tools. Though I personally more subscribe to the interactive rubber ducky usage of them. But 90% from where I am standing seems like a very, very far way off.