The problem with the Michelin rating system is that people's tastes are influenced heavily by what they eat growing up, and therefore, what food is considered better or worse tasting depends on culture. Michelin is super biased towards french restaurants, which isn't necessarily a bad thing - Michelin is just a french tire company which originally made the guide as a way to market themselves towards french motorists, and of course they would target their customers. It's only a problem when they try to make it more general than that, and say that the guide is some official measure of objective tastiness when it really isn't.

I think crowdsourced rating systems like yelp or google maps are better at identifying tasty food rather instead of "fancy" food, but you could also say that its just targeting millenials/people who like smartphones. In something as subjective as food there is no such thing as a rating system without bias, it's just a matter of finding experts / systems that have similar tastes to you personally.