Especially in Boston, where Class B airspace covers the entire cities of Boston and Cambridge without exception, there is basic confusion between commercial rules (under the Blanket Certificate of Operation [COA] that is issued to new Section 333 exemption holders) and amateur rules.
For 333 Exemption holders without a very specific COA, flying in Class B airspace is effectively prohibited, since it's impossible to maintain two-way radio communications with air traffic control and an altitude-reporting transponder is impractical on an Inspire. In Boston, that means no flying for hire within 8 nautical miles of Logan Airport, which encompasses all of the sites that were shown in the video, including Boston University (which he admits to flying over).
On the other hand, amateurs can fly up to 400 feet outside of a 5 STATUTE mile radius of an airport like Logan, under the model aircraft exception.
All of that having been said, the prohibition of very low altitude (below 200 feet) commercial UAS flights in the Boston Class B airspace greater than 5 statute miles but less than 8 nautical miles from the airport makes no sense. There is no conflict with ANY air traffic in this zone, other than perhaps from Medivac helicopters landing and taking off from hospitals in the area, which is a manageable hazard just about anywhere.
With luck, FAA will come to its senses and grant appropriately authorized commercial operators AT LEAST the same operating parameters as for amateurs, and will provide a better way for responsible commercial operators to operate above cities like Boston in areas where air traffic is non-existent.