There is an old Hebrew saying that says "A thousand examples doesn't constitute proof". Or, words to that effect. So in that sense you are right. But, on the other hand, I did not claim this was some kind of proof. It only an example where an OO design (actually re-design) approach worked well.
I mentioned the gas meter object. One of the things that happened was the application users, in reporting a problem, would say "The gas meter is broken. It does...". The communication between the users and developers was enhanced. And, the developers could zoom in on the relevant code quickly.
Can you imagine a user saying "You've got this table, and it..."? Not likely.