Wow, pretty bad promotional video.
Old man, several of the companies with the 333 exemptions have multi rotors registered. My understanding is that they are classified as experimental, but they are registered complete with N numbers.
The bigger issue here is people lying about having a COA under a 333 exemption. In this case, neither Rotor FX LLC or Oleksiy "Alex" Zayika are shown to hold any exemptions. It seems that Alex is a full size pilot, but that alone, of course, does not in any way grant any status to fly multi rotors commercially. Having his full size license is just one of the steps to getting 333 exemption status.
I've noticed several people listing that they are "FAA approved pilots" within the context of flying multi rotors. It's BS. As of now they are either part of a 333 exempted company or they are not.