Variety didn't think enough to ask the DS producers what character (name) she will be playing?
I really doubt that's the case - especially considering that with all the other actors they have included their character names in their reports.
Is it because by revealing her character's name it would reveal a storyline that TPTB don't want us to know?
That could be behind the reasoning - I don't know. But I would definitely hazard a guess that the reason no character name has been included for Bella Heathcote's character is because the person connected to the Depp/DS film who is supplying Variety with its info doesn't want the character name published just yet and Variety is accommodating them (and the fact that they are accommodating them is what I find so fascinating). We can only speculate why that is. But I wouldn't blame Variety for the omission.