Landing something the size of a washing machine on a comet just over 2 miles wide, which is over 300 million miles away while it travels through space at over 40,000 miles per hour.
I think it's all made up. A hoax fabricated to give techies and trekkies something to believe in. Really, they can't stop ISIS or radical Islam but they can land a spaceship on a comet somewhere out there??? Poppycock!!!
Any data mission control got was already 28+ minutes old. If any alterations needed to be done, it would take 28+ minutes to see the data to tell you that an alteration needed to be done, 28+ minutes for your alteration to reach the craft, and 28+ minutes to see the data to verify whether or not that worked.
I'd really like to see a pilot land on a carrier under such conditions.
The big question should be... we put a man on the moon with slide rules and less electronic computing power than a modern cell phone... could we have done this with slide rules, too, if technology had not evolved to it's current state?