Dear scientists, for the love of all that is good, don't repeat this test.
Cats aren't ever going to forgive you for engineering a situation where they are seen to land in an ungraceful way, and there's a tiny chance that they will make us all pay when they evolve opposable thumbs.
Cats can't be bothered to evolve opposable thumbs. They have human staff to take care of anything that requires an opposable thumb, why would they bother doing it themselves?
Cats are crafty enough to both survive and plan for a post-human landscape, such as climate change, World War III, or supply chain issues driving up cat food prices.
Cats aren't ever going to forgive you for engineering a situation where they are seen to land in an ungraceful way, and there's a tiny chance that they will make us all pay when they evolve opposable thumbs.