I'm surprised by the number of people who've never done anything stupid in airplanes when they were new and invincible. You guys have always had the seasoned gravitas of Sully, have ya?
And "Deserves to die," really?
It's not that none of us have done anything stupid, we all obviously have. It's that THIS is stupid.
It's not like we haven't thought that we were invincible when we were new, we all very likely have. It's that THIS has all the hallmarks of horrible decision making.
It's not like we all haven't come close to eating it a handful of times, because with this job, crap happens. It's that THIS act puts the guy into a corner where it's unlikely, in my view, that this guy came out of this one because of superior airmanship, but very likely because of superior luck.
And that pretty much sums up the thing that instructors teach their students; always have an out, make good decisions, and use superior decision making so that you don't need to use superior skills to extract yourself from a really bad situation. This flyby violated every rule that I've ever been taught as a pilot, or ever passed on as an instructor.
And dare I say, I'm not even saying that buzzing a lake is the worst idea in the history of the world. Is it a good way to get killed? Sure. But are there ways to mitigate the risk? Of course. How about we start with offsetting from the people 500', that's probably a good start. But when you look at this there's no risk mitigation, only good luck that the guy didn't hit anything.
And in the end, some PC idea that we ALL live in a glass house and therefore shouldn't throw stones should NEVER take a back seat to telling one of our colleagues that what they did was stupid, probably came close to getting others injured, and should not be repeated.