I think people are jumping on the "big bad government" bandwagon because that's what people do but think about it a bit.
First, as others have expressed, the FAA is trying to understand this new technology. Sorry, but if there's potential of something falling out of the sky, I want the government to lay down some rules. Imagine if commercial/private airspace (airline) were a free-for-all... yeah, that would be fun..lol
No one wants the government to restrict progress but I don't think Amazon drones buzzing by my car at 30 feet off the ground are a great idea either. Don't expect common sense to dictate responsible behavior, it never does.
Regulated airspace is strictly controlled for good reason but it also has a floor of 700 feet. With drones, we could be talking about regulating below 700 feet now (class G airspace) because I imagine that many drones could be flying in that space (potentially). There are also concerns for regulated airspace such as the fact that drones don't carry any kind of identification and can't be tracked by air traffic control by radar. Imagine if airspace below 700 ft starts to fill up with local business drones, the potential for collisions increases and without identifying information, knowing who else is flying in the area is impossible outside of visual identification.
It's really a complex problem the FAA faces when you scale this up from a few people playing around to a potential daily use by businesses and yes, they need to be involved and thinking they don't need to give this some thought, is irresponsible.
Now, that being said, I'm sure the FAA is asking the teams what they were doing because there are some things that they can legally do without a permit.
http://knowbeforeyoufly.org/for-business-users/
If they were filming practice for their own personal use and under that 200 foot personal used ceiling (for instance), I believe that they can do that legally. Commercial use is not automatic because an organization decides to put one up in the air. The bottom line is that if they do not plan on providing "services", I don't believe it falls under commercial use but that's something for the team lawyers and the FAA to discuss.