If you've been a tech lead of a group larger than, say, 10 people, you'll know the feeling of not having enough time to review all the code changes. But still, you're expected to and usually can contribute to important directional decisions. You have some confidence in being able to smell issues from patterns of software behavior. I think it might be people with that experience who tend to be more comfortable in delegating more to agents. That seems like the more likely predictive factor to me than "good" vs "bad" developers.