Audiences in North America may not be familiar with My Life as a Zucchini but that doesn’t mean that it’s not a worthy entry to the list.
We can guess that a lesser known film like that might have been the one that was cut if Finding Dory had made the list.
In addition, you do also have the fact that if you had included Finding Dory in the list, you run the risk of giving Disney three of the five slots for Best Animated Movie.
While there’s certainly a reason that the Disney name is synonymous with the medium, it’s nice to give others some credit too.