It's from 4chan, so there's a 102% chance it's actually dolphin porn in disguise. Sure, you MIGHT get juicy spoiler videos, or you might get a dolphin raping a salmon to death.
Personally, I hope it isn't BE exclusive, purely because I want people picking other Houses to have to feel the pain of shanking Flayn to continue down their House's path.
Best route, that's what.
Well, I meme. We'll have to see how it ends first. But getting overpowered enemy characters on side for a chapter or two is always fun.