People talk about canonization as "making a saint", but that's not at all what it's about. And it's not about saying they were perfect. It's about picking out officially someone who can provide a symbol for something that is seen as needing to be symbolized. Rather like Pope Francis rolling ip to the White House in that little Fiat. That wasn't about identifying that car or Fiats as uniquely great cars, it was a way of saying something that needed to be said, in concrete terms

Most saints never get canonized, and no one much ever heard of them. Like Joe's granny.