I'm Going to Rewrite the Devastating Novel - Episode 66

I really liked this story a lot better before the twist. I had thought it might come around that Estella was actually nice and had to take FL to the magic tower to treat her mom and childhood friend or something. That would have made it still interesting, but different from before. Now we find out that the reason she did everything is because she’s mad her sister wasn’t abused? There’s literally nothing left of the character she was before she got her memories back. Which is dumb itself. If somehow her whole personality changed because she lost her memories so she started becoming sympathetic to the subjects, then wouldn’t the magic tower master have just restored her memories? Seems like they really just want us to forget everything that happened before the twist.