Be angry at copyright, not at the decision to attempt to modernize a work of art; without copyright, both versions could be circulated concurrently (and of course this is why you see both traditional & modernized Shakespeare productions, unlike Broadway where every tour is authorized and a replica (some exceptions for school versions and such)). Art is a product of its times, and imo it's completely reasonable to want to update a version to what makes sense in the modern day and what children can now empathize with, and see themselves reflected in.