Not sure he looks particularly uncomfortable. He waves initially, shrugs when the drone comes in a little closer, and then lies back down as it backs off. But more to the point, while it's easy to criticize the pilot, you have to admit, anyone would be curious and amused to happen on someone sunbathing in a place like that.
I'm just saying, there's two sides to the story - one person's desire for peace and quiet and human nature's general curiosity. You just can't do something highly unusual and expect people not to be curious. Before camera equipped drones, the guy would likely never have been noticed. If we were to rule out flying anywhere you might happen to find someone doing something unusual, well, we might as well just quit flying all together.
If a general aviation aircraft or police helicopter noticed the guy there, there's no doubt they too would have circled a few times wondering why the guy was there and if he was OK.
There's enough alarm and outrage from the general public over drones. We should try to not feed into it ourselves when it's not clearly warranted.