Thanks for the cutscene alert! I don't know how that door eluded me O: (Sorry for taking 2 weeks to thank you, but finals #KillMeNow)
I tried out all the options, tell Florin about Flora, join Bladestar but I'll start V9 with siding with Erin and not reveal what we have come to found out. In my first impression(when we catch Flore destroying part of the forest and then meet her with Florin, it seemed like it would play out for us to assume she is bad, but actually is good. But after playing all the possible scenarios I think that things aren't either all black, or all white, meaning that to some extent there's government corruption, but that Bladestar isn't 100% patriotic as they describe themselves. Let's see which one will be on the right side when V9 is released.