The problem is that the FAA doesn't issue licenses for private use of commercial drones right now, effectively making monetized videos against the law.

Quote from another article:

"Chris Servicky, a licensed helicopter pilot who helps run the company, says they never got the FAA’s letter and says that he talked to the FAA about trying to get certified and they said no.

'They don’t want you to make money off of it, so we sell the editing of the video,' he said."[1]

Saying monetized drone videos are legal is akin to saying meth is legal. Technically it is if you have a prescription, but it's near impossible to get a prescription, rendering that point moot when it comes to legality.

[1] http://motherboard.vice.com/blog/these-are-the-companies-the...