One could probably make 100,000 more documentaries approximately identical to this one at other family owned businesses. The only thing particularly unique about this place is that it came to the attention of Michelin and then a documentarian. I don't mean that as a knock against Jiro's place at all, I just think the filmmaker overplayed the story. That and the combination of Japan and sushi made the situation seem even more exotic and rare than it really is.
It was entertaining though. I especially liked the part when he said something like "Welp. I'm ready to go. Why am I even here [at his parent's shrine]. My parents treated me like crap."