Earlier quoted context omitted.
> Firstly, automobiles are really impressive. Second, with that out the way, these cars are not playing the same game as horses Yes. That’s why cars don’t compete in equestrian events and horses don’t go to F1 races. This non-controversial surely? You want different events for humans, humans + computers, and just computers. Notice that self driving cars have separate race events from both horses and human-driven cars…
The point is that up until now, humans were the best at these competitions, just like horses were the best at racing up until cars came around. The other commenter is pointing out how ridiculous it would be for someone to downplay the performance of cars because they did it differently from horses. It doesn't matter if they did it using different methods, that fact that the final outcome was better had world-changing…
Now obviously it's more impressive as they don't have infinite compute and had finite time but the car only has one entry in each race unless we start getting into some anime ass shit with divergent timelines and one of the cars (and some lesser amount of horses) finishing instantly.
To your last point we don't know that this was cheaper since they don't disclose the cost. I would blindly guess a mechanical turk for the same cost would outperform at least today.