the trouble of t5 fight is not that it's hard... but the dive and twister that simply invisible. let's be honest it's impossible to know where twin will move while the dive, people avoid it by forcing her to move in a place they can't be touched if they move right before she hit. and twister it's... yolo i move and hope not be the one with the twister. (and that i haven't move too far away)

this two mechanic are the main hurddle of this fight. they are clearly an artificial way to increase the difficulty of this fight.
if they had used some mechnic like the last boss of stone vigil when he simply breath one one area for the dive
and some sort of red circle for indicate the eyes of the twister for survive... people will have complain that it was too easy.

the fight is not hard, but two mechanic make it a pain!
i know is not the subject but for me a very good fight is ultima hm, this fight is thrilling and very nice. T5? a pain, nothing great about it. 2-3 thing to know per phase and a lot of phase... that all. it don't make it hard or unmanageable... nor even thrilling or fun! i prefer instense and short fight than long and over complicated fight with multiple phase for make it look hard.