I have no problem with what he said, and Emmitt Smith is my favorite player of all time.
Zeke is a lot more gifted than Emmitt. Bigger, faster, more powerful, better hands, better pass protector as a rookie. If you're talking one game, I'd pick Zeke every time.
But Emmitt was great for a different reason. Emmitt moved the chains. Emmitt never got hurt. He barely ever came off the field. He played year after year. Emmitt turned himself into a complete player quickly. He understood what he was and where he was. His vision was exceptional.
Here's the best example of a typical game for Emmitt and Barry Sanders:
Emmitt: 2, 6, 3, 4, 14, 1, 4, 3, 7, 12, 8, 4, 29, 3, etc..............Total = 135 yards
Barry: 1, 0, -3, 12, 0, 1, 3, -4, 2, 4, 0, 79, 0, -2, -1, 22...........Total = 135 yards
Which would you take?