Re: From the article...
"Unusual planet in so, far, unique solar system, with very unusual star, in unusual location in not standard galaxy in very quiet galactic cluster."
I refer you first of all to Douglas Adams's famous "Space is very big" quote.
Now I refer you to the word "Exceptionalism". You're doing precisely that by emphasising how unusual the Earth is and how its solar system is unique. Based on a sample of how many?
Until telescopes there were supposed to be 7 bodies orbiting the Earth. And then more and more kinds of space rock turned up, upsetting traditionalists. Bode's Law turned out to be just Bode's Observation. As telescopes get better it turns out there are far more small stars than anticipated. Thus the universe isn't just bigger than we can imagine, it is more complicated than we can imagine. Eddington thought a star was a pretty simple object, then it turned out that no, it wasn't. The long refusal to admit the possibility of water on Mars is an example of scientific resistance to change; the discovery of cold places on Mercury, and that Venus has tectonics, they are just different from ours, shows how our understanding of things tends to be oversimplified and based on "if it isn't like this it doesn't exist".
The tl;dr is that you are trying to generalise from a known almost infinitely tiny sample of what's out there, and that is exceptionalism, i.e. we must be special therefore anything not like us isn't.