Raiders, why do you consider raiding just not memory games ?

[IceEyes]

Because raiders don't see raids like you do, op.

The problem with difficult fights in FF14 is that it almost completely nullifies your past gaming experience.

Don't get me wrong, you can still do well in a rotation or tank/support role, but 90% of the fight will not be between you and the boss, but between you and the arena and your partners.
And if some of the patterns remain familiar and can be responded to, then many of the mechanics of many bosses have extremely unobvious attack patterns, more like solving a rebus by committing suicide.

Considering that they are almost always fatal to the entire party, it is not surprising that they will never go beyond the niche of optional/low-popular content.

By the way mentioned Sols again, but did not emphasize the main thing. Your past gaming experience is not invalidated. If u was good in parry or avoiding attacks on any boss, u still be fine on it in most situations.
In FF14, almost every battle is training from scratch. This is most terrible thing of raids. But some people like it, and they even manage to have fun and compete with each other. Cant judge them for that...

... until they start asking why raiding isn't fun for me and trying to convince me to try others jobs, because my main isn't fun...