Hacker15e
Who am I? Where are my pants?
This brings up a question, let's say you're a revenue passenger who is a private but no commercial pilot, but you you're riding in the back revenue and something happens that scares the living crap out of you
The list of reasons why that private pilot passenger might have no idea what the reasons are for the things he/she saw is endless. MIGHT they have a valid point that there was something unsafe going on? Sure. Might they also be adding up 1+1 and getting 7? Very possible, IMO.
Let's remember that despite the saying, perception is actually not reality. Just because this passenger saw events as a spectator and perceived them to be one way does not mean that is actually what happened. The passenger view out the side window, with no SA on comm, traffic, weather/winds, aircraft performance, aircraft-specific procedures, company-specific procedures, etc, means that they have an incredibly small view of events and an uninformed prism through which they viewed them. Therefore not only could their perception/understanding of what happened be off base (sometimes significantly), but there's just no way for that person to make an informed conclusion about why it happened.
It would be different if this passenger were a pilot rated in the aircraft in which he was riding...even more different if he worked at the company he was riding on; the knowledge level would be different. But even then he would still be blind to what was happening at 12 o'clock (literally and figuratively) and probably wouldn't have enough overall awareness to make an educated opinion about what was happening up front.
To be blunt, I'd say to that guy sit the hell down and let the professionals in front of the cockpit door get him to his destination safely, then go on with his life. I think an ASRS report as a non-crewmember would just be ridiculously out of his lane.