Uber's article mentions: "...but as we evaluated the product, we realized that it did not have critical features for Uber’s use case, such as deduplication." ho

Uber's article mentions: "...but as we evaluated the product, we realized that it did not have critical features for Uber’s use case, such as deduplication." however, I also see, they used go quite intensively. Maybe, they also did it for the productivity gains while implementing their additional features