The problem is the chasm you have to leap between roul content (hardest of which is Alliance and 'Expert') up to then doing Extremes.
When you enter Extremes you are suddenly playing a 'completely' different game (your only small chance is that you've been speaking to the kinds of players who's awareness of game skill comes from the use of certain non-ToS-compliant utilities).
The other problem is marketing, certainly in the English localizing.
'Expert' should not be called 'Expert'.
I've met many people who were needlessly scared off because they had one bad experience in their first foray into content where they are neither (a) massively gear over-powered, nor (b) being carried by a full 3 other experienced players. (maybe just one or 2). Sometimes made worse by other players making comment because they too are only used to all players to be an OP 'carry' level. ("How dare you be in a dungeon without the latest day 1 savage gear! My best friend is actually having to heal your worthless butt!")
So they have no chance of trying '!Extreme!!!
', which is also needlessly off putting. I spent years not even considering it because I though oh 'Extreeme', "
that's not me... I mean I haven't even done 'Savage' yet!"
I mean I'm not the best player, but I 'can' clear them, albeit with maybe a bit of a carry. But rarely do you get a full carry especially if it's still in the 'high-end' tab.
"By the way Gurgeh, Extreme is easier than Savage"
"! ???...oh..."
As for doing 'UnReAl!!!!!!!'...
"oh my gosh! I'm not a world first-er!"
"no... no.. no... that's 'Ultimate'."
("I thought that was the thing I unsynced after ARR MSQ?")
If people so much as KO a few times in a dungeon its mostly shocking. As for if you should ever wipe...people experience crisis. ' what is this? did the game crash?' 'abandon instance!' 'abandon instance!' 'all is lost! There is no hope! Tis the Final days come again!
...This is not right.
I'm exaggerating. But not by a lot. All of the above I have encountered more than once.
Aurum vale before they added aoe telegraphic was 'sooo' important as a learning exercise.
Maybe yes get it out of the way of free-trial content at the very least.
Maybe they should have no-telegraph modes, that are applied to latest level 90s(100s) and not disabled until next expansion, to teach you.. .or something I don't know. But Extreemes are such an unnecessary (and overcomable) shock.
(The only thing I never want to see is people suggesting you should go solo if your not good enough. I will immediately report that.)