Cool, now you can pay an attorney $500/hr for them to prompt Astra for 30 minutes, and bill you like they spent the normal 8 hours on the case.
That is an ethics violation. Even in the pre-AI era, getting caught billing for hours not worked was seriously punished.
Perhaps, but then someone would do the same but bill you for 7 hours, someone else would undercut them again, until the price reaches a lower equilibrium.