My problem with this situation is not the difficulty of Proto Ultima. It's the fact that Proto Ultima was put in as a replacement for a trash mini boss in Dun Scaith. Proto Ultima has been in the game ever since Heavensward released. You can see it flying around just before the World Fate in Azys Lla pops. So for almost 2 years, there was a lot of interest going around Proto Ultima already. When they announced it for Fan Fest as a Trial Battle for attendees, we all knew right away that it would be available in the game for everyone. So the expectation for a new trial was already high among the community, and grew larger as we saw the battle streamed live from Fan Fest. There's also history as well, since Odin was a Fan Fest Trial at the previous Fan Fests, and it was released as a Trial, and met the expectations of the community at that time.
Unfortunately, the team decided to add Proto Ultima into the game as a Trash Monster to replace another Trash Monster. The community was expecting a 24 player Trial Fight, and unfortunately, they didn't get it. Instead, what we really got was an update to Dun Scaith, which was completely unnecessary. Maybe if Square Enix or Yoshida explained to the community how they were going to add him into the game, there wouldn't be as much hate as you see now. But they chose to keep quiet anyway, and the community was greatly let down because of it.
While I don't expect Square-Enix to change the fight into a Trial Fight, they do at the very least need to explain to the community the reason why they made the decision to implement Proto Ultima the way they did in this patch. At the very least, they do owe us an explanation, because as you can see, a large portion of the community is very upset...