Semi-pro drones aren't reliable enough. DJI recently shipped batteries for the Matrice and Inspire 2 which failed mid-flight due to a firmware bug. Affected dro

Semi-pro drones aren't reliable enough. DJI recently shipped batteries for the Matrice and Inspire 2 which failed mid-flight due to a firmware bug. Affected drones fell out of the sky. Most "pro" drones haven't had anywhere near the level of auditing that any commercial helicopter has gone through.