I rarely see reviews on Google for any shops or services in my hometown.
It goes against the culture of megacities like Bengaluru. There are reviews for almost everything there.
Most of the people in my hometown have reasons to stay for the long haul. They are aware that they may have to confront each other again, despite their previous unpleasant encounter. In small towns, even if you are dissatisfied with your experience, you should think twice before posting negative feedback online that is visible to the public.
Even if they are on the wrong side, people are often offended when they receive criticism. In their story, they are the hero with an excuse of every wrong doing.
Another reason could be a lack of options in small towns. When my car breaks down, I may have to contact the same guy I gave negative feedback to. And he definitely remembers the public shaming we attempted.