When asked to produce a thing, the output has a much better baseline of quality. But when you ask it to evaluate the quality of a thing, how do you evaluate the quality of its response, which is necessarily subjective and not quantifiable? How can a thing which has no experience of friction be said to subjectively evaluate quality?

Either you are yourself already a better judge of the thing’s quality, in which case the response can be of no use to you, or you are a poor judge of the thing’s quality, in which case you will be blind to the flaws in the synthesized opinion handed back to you.