Endgame should be challenging - that's the point (from a casual player)

[Raikai]

These teach you your job

Absolutely not.

The casual content in this game is so easy that it doesn't teach you how to play a proper dps-maximized rotation at all. The solo duties, quest enemies, all die too fast. Nowhere in the game teaches you what the recurring encounter markers mean, beyond the very basic ones.

There's a number of new players who hit all 4-5 oGCDs back to back because nothing in the game teaches them what weaving means. Do they know that an "ability" is not considered magic like a "spell" is, thus not affected by some modifiers? Tooltips aren't clear enough. Even though said abilities look like magic visually? Do players know the importance of cooldown alignment in the 2 minute marks? How you're supposed to learn all of this so you can even have a chance if you want to do High End content?