I really don't see the issue with the match up, like at all. It's a completely fresh match-up for Bex while they get Bianca back into the #1 Contenders spot ready for WrestleMania. We've had her against Liv, I don't wanna see anything Doudrop related and wasting a match against Rhea here would just be dumb.
People are tired of legends/hall of famers/part timers coming back and beating the full time people, but now one is coming back and presumably putting over the full time person and are met with "this it aint it because it's too predictable."
Lets have a returning Asuka or Bayley lose instead, i'm sure that will go over just swimmingly.