Is this a joke? If not what would be the point of this, seriously? Reminds me of drones writing the name of a Pharmaceutical product into the blue sky of Toronto, a few years back.
I believe it's described as a "test flight", so the only purpose is to fly around for a few hours and watch the instruments .. so you might as well add a few lazy turns in and draw a pattern. So long as it's outside major air routes and military airspace it's in nobody's way.