Also, trying something new out will most likely have hiccups. Ultimately it may fail. But that doesn't mean it's not worth the effort.
The thing may rapidly evolve if it's being hard-tested on actual code and actual issues. For example it will be probably changed so that it will iterate until tests are actually running (and maybe some static checking can help it, like not deleting tests).
Waiting to see what happens. I expect it will find its niche in development and become actually useful, taking off menial tasks from developers.
Now when your small or medium size business management reads about CoPilot in some Executive Quarterly magazine and floats that brilliant idea internally, someone can quite literally point to these as examples of real world examples and let people analyze and pass it up the management chain. Maybe that wasn’t thought through all the way.
Usually businesses tend to hide this sort of performance of their applications to the best of their abilities, only showcasing nearly flawless functionality.