They are noisy and as someone mentioned above, they would have to be extra careful to not get too close and impact the flight of the disc. They move a lot of air.
I don't know if the legal aspects have been relaxed or modified, but using a drone for commercial purposes had (or has) a lot of restrictions.
I don't know if the legal aspects have been relaxed or modified, but using a drone for commercial purposes had (or has) a lot of restrictions.