My reading implied that they weren't able to use the apple hardware acceleration for AI, which given the massive perf delta I suspect the A100 is using. If they weren't using the A100's ML hardware I'd be both amazed by Nvidia's engineers, and also unhappy as it would be unfair for the test to not use the features of the hardware (this is a common refrain in some benchmarking circles where you disable features to get "fairness" in comparisons).

Honestly though I'm more concerned about the other aspects of apple's software: "The OSX Window Server crashes when all GPUs are used to the maximum"