Aurum Vale difficulty...you don't get book credit if you are dead FUN

[Doki]

So is it just me, or does anyone else remember this instance being easier than it is now?
I needed to clear it for one of my Curtana atma books and had quite the traumatic experience with it:

First 2 attempts using Duty Finder: other 3 members were all level 47, first time inside. Each boss took about 3 attempts to finish, and after multiple attempts at final boss it was clear it was un-winnable and people left.

Second 2 attempts going in with 2 endgame friends (a healer & brd): Almost the same level of difficulty. The first 2 bosses took a really long time to kill. The final boss continued to cause exceptional difficulty for whatever reason and took a few tries to down each time.... unfortunately BOTH times, I died a few seconds before the boss died. Being dead ,or even releasing to start, when the boss dies results in not receiving credit for the book completion.

I did manage to survive on the 5th attempt with a duty finder group full of ilvl90+ people. However, I feel like this instance may have been overlooked after so many other ones have had their difficulty adjusted. I tank in endgame, I understand the mechanics of all the fights and I am pretty sure everyone I ended up paired with did too. Thoughts peeps?

**edit** Looks like I most likely was scorned by the RNG gods and given incompetent players in duty finder. However, I've used duty roulette tons for pretty much every dungeon and never run into any problems outside of these AV runs yesterday, and a couple early Pharros Sirrus runs. In both cases I think the failures were due to the higher than usual burden placed on the healer due to debuffs on everyone at the same time.