Other characters like Hercules’ Meg and Kida from Atlantis: The Lost Empire aren’t canon Disney princesses either, despite being prominent characters of Disney animated features.
Of course, Disney isn’t just in the business of giving just any character they own the title of Disney Princess.
While newer characters like Moana and Elsa have been added in recent years, the company has balked at adding Carrie Fisher’s Princess Leia into the mix.