The Short Version
All five components listed — motors, ESCs, flight controllers, GPS modules, and payload release mechanisms — are well-documented as standard hardware in delivery drones across multiple authoritative technical sources. The word "include" signals a non-exhaustive list, so the claim does not purport to be complete. However, other equally essential components such as propellers, batteries, airframes, and communication systems are omitted, which could leave readers with an incomplete picture of delivery drone hardware.