Another plugin feature being added to the game official (Job Icons)

[Iyrnthota]

let's say hypothetically they make a new ultimate fight but put the hardest 3 trios at the penultimate phase
trios by definition make bosses untargettable so you focus on movement only, not dps
so if you were to be able to play on a simulator that lets you practice the trios without having to do all the previous phases, you would gain a massive advantage because anything you learn in the simulation can be translated 1 to 1 to ingame movement

so if the asaumption is that since simulators are freely accessible to anyone and therefore not cheating, then should developers make the latter phases of a fight insanely hard, with the assumption that players are required to use simulators to practice them beforehand?

Why would being able to practice a later phase more efficiently mean it needs to be tuned to be harder?