That episode sucked. It had made pretty much every sister an antagonist. (except of one sister in particular, I'm not gonna mention the name, to avoid spoilers) And the ending didn't help either. It just made the sisters condescending. Basically this episode is persuading us to hate the sisters, and it succeeded.
Overall, this episode is an incoherent mess. A pathetic excuse of an episode.
Overall, this episode is an incoherent mess. A pathetic excuse of an episode.