I'd only add that certainty requirements for real-world target applications can differ substantially. I.e. engineering vs art.
A toy box that gives magic answers 85% of the time is incredibly useful in some scenarios -- e.g. seeding the beginning of a manual research process with initial topics.
Which seems a general rule of thumb for deploying GenAI into production these days: find use cases where there are minimal consequences to being occasionally wrong.
In my head, that's the Netflix recommendation test. What's the impact if Netflix gives me a bad recommendation? Consequently, that's how aggressive they can be with their models.