What if they are a 10x programmer put on the project that was shut down after a year of development? Did they produce measurable value or not and more important

What if they are a 10x programmer put on the project that was shut down after a year of development? Did they produce measurable value or not and more importantly, do you want them on your team or not? What if they were just doing whatever was asked of them without caring about value and now are pulling up some measurements out of mostly thin air because the hired resume writer told them to do it? Do you want this person on your team or not?