Bianca was just there to hype of wrestlemania.
I get why she was there. My gripe about that whole thing was moreso toward Rhea and Becky, and even then I think it's obvious that's what they are building to, so I honestly don't have that big of an issue with that. To my earlier point, if everybody needs screen time for their stories, then the one chapter that's actually going into motion should have been there, too.