I think it's because what tech people do is objectively verifiable.
Did the thing the agent made do what it was supposed to do? Yes/No. There's no "mayyyybe" or feelings or opinions. If the sort algorithm doesn't sort it doesn't work.
But a secretary-agent for a non-techie is more about The Feels. It can summarize emails, "punch up" writing etc. But you can't measure whatever it outputs by anything except feels and opinions.
Did the thing the agent made do what it was supposed to do? Yes/No. There's no "mayyyybe" or feelings or opinions. If the sort algorithm doesn't sort it doesn't work.
But a secretary-agent for a non-techie is more about The Feels. It can summarize emails, "punch up" writing etc. But you can't measure whatever it outputs by anything except feels and opinions.