Honestly I've done the fight about 4 times now with friends and the only difficult part I found was the circle aoe in pinwheel rotation.

This fight is very simple and at worse in rous will be one wipe and people will get over it.

I've gotten to around 65% on EX blind and EX is also manageable now that I've watched vids on how to handle said pinwheel aoe.

Second phase is also extremely easy, and if you're failing to meet it your party is either recovering from deaths or you just have people tanking the adds badly.

All in all normal is fine and should be what it is. Though I will state the fight is longer then I expected for an trial.

God forbid we actually have a challenging set of trials/raids instead of the laughable Hades EX that was said to be "Hard as Shinryu EX"