Judging by the video, each one of the Blades fills a bit of a Niche, or trope, and that the bunny that everyone is getting up in arms about was designed to fill the Femme Fatale trope, a type of character many consider to be misogynistic unless it's made to emasculate a male character and "Take Back" some form of power in the form of spouting feminist rhetoric and treating men badly.
Onto the subject at hand, I feel the same rule applies to everything. Unless it breaks the law, Creators do not need to justify anything for their characters designs. Short of Child Pornography, due to the nature of fiction being able to show pretty much every other form of crime without repercussion, A character can be designed in whatever manner the creator decides.
What people don't understand is that by making characters need to be justified, to have them required to have a reason to be designed a certain way, they are handcuffing themselves to the very arguments they presumably despies whenever people complain about "Sjw-ism in Fiction".
Carol Danvers having a haircut that I consider to be ugly, a personality I consider to be Bad, and a message in her comics I consider to be bad, along with a superpowered form I consider to be Poorly Designed, should not be grounds for Carol Danvers current artist and writer to be removed from the comic and replaced with somoene who will draw and write Carol Danvers in a way I enjoy.
Carol Danvers doesn't need a reason to be Written as Carol Danvers, nor drawn with a look some consider to be bad. Just like Ms. Marvel doesn't need a reason to be a muslim girl. New Hulk doesn't need justification in order to be Korean. And the people responsible for Thor Ragnarok do not need to answer for making Valkyrie a woman of color.
In the west we really like to claim all these designs need no justification. In fact, people balk at the idea of questioning these changes, to the point of decrying Misogyny and Patriarchy and Racism and Sexism, and all manner of terrible human beings.
But when it comes to Eastern entertainment? Nah, they gotta completely change every character design to fit our standards. What, you had an idea for this female character to be okay with showing off her body? How fucking dare you, who authorized you to design your character the way you want to? Who gave you the clearance to make this design? I wouldn't have approved it, so you either change it, remove it, or you're guilty of spreading misogyny and hate.
Seems really two-faced to say "This media can do whatever changes and redesigns they want, because I like the changes", and then turning around and saying "This media needs to change it's original content because I hate it."
We're okay as a culture with taking someone elses idea, completely undoing it, making a different version, and then belittling anyone who doesn't like the new changes. But we also seem to absolutely hate anyone who makes their own story and characters, but doesn't do it to an imaginary standard we decided the entire world needs to adhere to.
Kinda makes the whole conversation seem really foolish, when you know all of it is held to a giant double standard.