Were those numbers in the article? Consumer drones already beat those numbers by half, I'd be surprised if purpose-built equipment would take a step backwards i

Were those numbers in the article? Consumer drones already beat those numbers by half, I'd be surprised if purpose-built equipment would take a step backwards in battery technology. Also, why would you need that many drones instead of swapping batteries? I feel like I'm missing something, what do you know that I don't?