These kind of angles have a small opportunity window to be executed right. So it's can be a good thing, but if they don't execute it at just the right time, it will backfire.
Keeping Sasha Banks off TV, and allowing Charlotte to run down all the major face competitors for the title, when it comes to the point where she's essentially injuring the faces. Even heel turned face can't stop Charlotte, and if they keep Sasha Banks off TV or to a minimal amount of TV time, the crowd will get behind her. When she makes her break through into the title scene, it would be amazing. It could be great for Sasha's run.
But if they keep her to a midcard role for a long time, and not really giving her the spot and time to get the crowd behind her. Much like Mankind/Mick Foley in 2000. They wanted him to get this hero's welcome despite being gone for 3 weeks, after a title shot. It was horribly booked. If she was given the Daniel Bryan type push for the title, it would be good.