Facebook’s ML can probably use these events and improve DoorDash’s ad delivery efficiency by a significant percentage. It potentially equates to millions of dollars of savings depending on how they use the ad platform. Even just allowing doordash to measure their advertising outcomes is a big deal compared to traditional advertising. You could spend $X million on tv and have no clue if it worked, or spend it on Facebook and use these events to get precise measurement to what degree your ad dollars are resulting in real business outcomes.