Too much memorization, not enough RNG on raid fights

[Raikai]

So in other words...World of Warcraft?

WoW does what I think you are saying. It rewards not just pattern memorization but also a person's ability to get themselves back into a fight. It's way more chaotic but rotations in WoW are a lot simpler to compensate.

I think a WoW style encounter with FFXIV rotations would give people migraines.

But I've seen, at least in the last xpac, WoW over complexifying their boss mechanics design to the point that you're completely required to look up for a video beforehand to even grasp the basics, as the dungeon journal descriptions won't help a lot.

I agree with you, though, in the sense that if same boss mechanic complexity would be inserted into XIV's design it would be extremely difficult. But maybe - some - elements can be incorporated without tipping any scales.