My latest P2 (the hippokampos one) normal mode confirms this.
We had a player who kept dying in that run, and not just to the red and yellow arrows mechanic (which I qualify as the only part that might be a challenge in that fight). My friend and I were the 2 healers, and we got so frustrated rezzing the same person over and over only for them to die soon after. At some point, we decided to spend our mana on keeping people up rather than rezzing someone who'd keep dying. My WHM in particular was really starting to struggle with mana. This person then said they were new and didn't know how the fight worked. I told them that they should say when they're new so that everyone would be prepared for it. My friend tossed them a rezz and we both felt way less frustrated after learning they were new and we thought that would be the end of that.
Cue in the dramatic entrance of the main character of this story: The White Knight!
This person took it upon themselves to defend this poor helpless first timer and save them from the big bad healers who had no right whatsoever to be frustrated -.- Funnily enough, this white knight was the person who had the second highest number of deaths after the first timer. Maybe they felt called out in a way ¯\_(ツ)_/¯. The white knight said stuff like (exact copy of what they wrote): "awk get over yourself," "get a grip," "As if you're perfekt in everything you start..... holy cow"
Like, dude, if you wanna go there, I actually didn't make too many mistakes in my first time in that fight. I paid a lot of attention and tried to pull my weight as much as possible (not to mention I told people I was new at the very start), but that's not even the issue. Neither my friend nor I said anything about the person being a first timer being our issue with them. If anything, learning that they were a first timer immediately defused our (legitimate) frustration. The only thing I said was to let people know about being new--nothing more and nothing less.
P.S. I should mention that I sent that first timer a tell after the instance to clarify that them being new to the fight was never the issue and that it's better to tell people, especially healers, when you're new so that they'd be prepared for it. They were cool about it and we parted ways on good terms.