New toons are always slightly op. It's called power creep and it is necessary for their business model. I don't see it as a problem as long as the good iconic characters like ep and vader get the occasional rework. It would be a problem if the character could not be beaten but that isn't the case. And how one unit performs in an event is not the sole indicator of them being un beatable. If I recall the enemies are fairly generic med damage dealers with nothing special in their kits. That of course would be hard to beat her with.
