That reminds me of my first E3 normal run. I had never done normal raids in the previous expansions, just played through the story basically.
So I did e1 and e2 with e1 being a nightmare because people kept killing each other and it was my first time, I was healer and always felt like I couldn't get the situation under control at all. E2 was better.
So when I zoned in for E3 I told them that I hadn't done this before and if we split somewhat evenly for platform split for better heal range and more space and the reactions were (almost word for word):
"lol this isn't savage"
"oof someone wants to optimize normal XDD"
"oh my god who cares? just do whatever lol"
And (my favourite) "elitism much? Ppl even tryhard normals now"
I don't know if they managed to miss the "I'm new to this fight" or if they just saw someone so much as mentioning something like a strategy and immediately got triggered but it was a disheartening experience either way.
After the complete chaos in e1 I wanted to avoid something like that and simply asked how they go about it. A simple "not necessary in normal" or "not necessary but you can an take left, I take right platform" would've been great. Instead they chose to make fun about "tryhard questions" and "optimizing normal".
And 5min for Ultima? Were they all auto attacking? Because that thing is usually dead shortly after immunity falls off. Everyone has all their cool downs ready, all that's left is whack it.