Here we fucking go:
I'm gonna say it loud and clear, I think Scientology is a giant scam for rich people, full of human garbage, and more things I won't say because I don't wanna get banned.
But I also believe in the "blame the game, not the gamer". Here's where things get full of layers, being in a cult is no joke. She might have been brainwashed her entire life and harassed that woman, defended that p*dophile and maybe have changed her ways. Believe it or not, many of us we've done awful stuff to other people, and feel remorse about it. I don't know if she regrets or not about all those acts, and since none of us know, we can just make wild speculations.
Does being indoctrinated excuse any of her errors? No, but you live and you learn. There's no other way.
One more thing. The band has already proved to be smart enough to, at least, make a background check of any new member. I don't think that this is going to ruin any of their plans