I do think that FFXI's quests are WAY too vague and don't give enough valid information to complete them. There's a difference between challenging-to-figure-out and totally unreasonable content!

I'd prefer the depth of FFXIV to be discovered by, for example, getting a quest and it taking you into the depths of Eorzea where you wouldn't otherwise go, and find things out about the world that way. As opposed to having to google the location of a '???' mark that is, essentially, a needle in a haystack.

I do like the sense of community that seems to develop when people have to work together to figure new things out in FFXI, though. I much prefer things to be added in a shroud of mystery rather than being immediately obvious.