Just because the game was hard for you back in Vanilla/BC doesn't mean it as hard for everyone
WoW was never, ever hard (barring the challenging dungeons/raids, which is a whole 'nother beast, and they've only been amped up since). Leveling was tedious (and doable 1-60 and 1-70 completely solo). Keys/attunements were tedious. Reputation farms were tedious.
Sure, there was the oddball "group quest" that, yeah, you'd get fucked if you tried to solo (duh? not HARD to figure out), or the oddball "solo challenge" type quests (Hunter bow/staff and the Benediction/Anathema), but those were too few and far between to be able generalize the whole game as hard.
TEDIOUS DOES NOT EQUAL HARD, people. It. Doesn't.
It means boring.
Dailies, in their current iteration (and abundance), are also tedious. Do you really wanna tell me that they're hard?
Edit: Wanna make WoW hard again?
Ban MMO-Champ and any WoW related "infoz" site.
Ban YouTube videos of boss kills (specifically, the FatBoss-esque strategy guides).
Get rid of DBM, BigWigs, and any "nicety" type add-ons.
(or, since none of those would actually work, limit your own personal usage of these to 0 [and try to convince your guildies to do the same, without them laughing at you])
No more PTR testing, and if a class is broke in Patch 5.4, it stays broke until "Patch 5.4.2".