Yes there exists but he probably didn't use it, I can hardly imagine anybody playing something that sounds that much like a robot...
Depending on the quality of your keyboard being used for midi, the result will be far from sounding like a robot. The Yamaha S90es actually taking its samples from the Hand crafted $250,000 S700 grand piano. People can argue that the feel and quality is not that of an acoustic piano, but then there are many present composers that would disagree. The quality of current keyboard FOR RECORDING are rivaling those of acoustic.
With that said, for performing and casual playing I prefer an acoustic piano for the full energy it produces.