Again, MOST people aren't interested, or ultimately don't care enough to read reviews on products. Some do, most don't.
It's like vehicle reviews. People are going to look for a new car. They're not on the Internet checking out all the reviews, recalls, pros, cons, etc. If you check out car reviews, there's a higher percentage of people that will be posting about the negative side of things. Transmission problems, oil leaks, interior flaws and so on.
We live in a world of buy now, talk later. It's human nature.