Nothing wrong with having this woman as the Snow White actress.
The problem is really their perversion of the story and what sounds like a ham-handed attempt to make it post-modern and woke.
Except that the character was named Snow White because "her skin was white as snow." Movie studios used to cast actors who looked like the characters they were playing. They still do if the character is black (imagine the screaming protests if they cast a white actor to play Black Panter). If the character is white then they either rewrite the characters as black, gay, transvestite, or all of the above.
Maybe they can call this movie Sand Brown and the Seven Woke, Diverse, Non-Binary People.