Don't be setting false expectations. There is nothing hard about any of the dungeons / bosses you mentioned. The first even remote PvE challenge you're going to have in this game is AK if you do it as a fresh 50 in AF gear. Even then, wasn't that hard for my static. Died a few times on demonwall until people stopped getting knocked off then ez.

Ifrits yawn, garuda a bit better... Finally gets hard at Titan.

Though none of that is what bothers me about this game. What really irks me is the fact there is zero outdoor content for a 50, I have to wait 30+ mins in DF WITH A FULL PARTY.... And outside of leveling alts there really isn't a whole lot to do yet as a 50. Mind you its a fresh MMO and this is expected... I just hope they arn't going entirely themepark style with EVERYTHING from here on being instanced queue crap. Bring the immersive back please, if I wanted to play WoW, I'd reinstall it.