The law changed, license no longer needed for hobbyist flying drones as of last year. If you are charging for your services then you have to get a license or you could get ticketed. Cheers !
Yes I heard about the license not required. However there is still restrictions in part 107 that have not been revised yet they are just proposals to the flying over crowds. If you are 250 grams or less probably you can but over that weight I think you must follow some additional safety rules. Anyhow great video.