I sort of wish players could only choose one job.

[ZakarnRosewood]

It's my hopes too that everything will be more flushed out and feel like the kind of story SE usually tells full of lots of intricate characters. it sounds like your beef isn't really with multiple jobs but instead you are using the single job method to hopefully fix a different problem.
With any luck after the 25th some of us will get a chance to wet our apatite on the beta. I dont know why but i have a feeling once we start playing, peoples perspectives might change. On many topics.

[PSxpert2011]

One of the first things that comes to mind when I think of Final Fantasy are the jobs, like White Mage, Black Mage, Monk, etc and that the characters were normally reined to one role and thus were indispensable for their unique abilities. (Well, for the most part that is.) It is this, I think that allows others to more readily respect and appreciate the significance of that specific role and player when it isn't so easily replaceable, or if at all. The player and their name sort of becomes renowned with that role.

I mean when if I wanted Black Magic I think of Vivi,blah blah ...

I'm surprised that you can read so much, and yet understand so little.

I love the game, I love the story that drives our characters BUT I do NOT like the story behind the jobs. (White Mage, Black Mage, etc.) It felt rushed, shallow, and contrived. I can't really make it any clearer than that.

From the title, i was wondering...

Is it just FF1 nostalgia of guilt for conspiring with the multi-job breakthrough SE introduced with FFxi compare to earlier MMOs before?

The story that drives players(adventurers) and the story behind jobs doesn't need to be complex or make sense. The story just needs to fill a purpose and be consistent. "High-Fantasy" the way they call it make everything magic with a little bit of science to back it up. But what is science if not the technology that drives it? As in the Real World, the Fantasy world has conflict and diversity. If you can't live with that, your a whole other conflicted existence.

Yeah, maybe they rushed it or made the stories very simple to keep focus on the rest of the game.... or to leave open room for more content. You just need to be optimistic and hopeful for expansions.