OP is 100% wrong about the FATEs. People are doing them all the time for Atma. They're not as busy as they were in 2.0 (anyone complaining about the number of people doing Hunts and missing out would have been horrified at South Shroud 2.0) and they're not in the same zones (if you're looking on Google for teh best FATE zones, it pays to use advanced search to discard any posts not updated in a month or two). If they're all empty, OPs biggest problem is likely that he is not playing at the same time as everyone else (server prime time) and this would his dungeon queues as well (servers being grouped by region etc). Or he could just be playing on a low pop server.

I'll agree that there are not a lot of low level things to do once you've got a couple of 50's under your belt (I did main scenario on one and all the side quests on another), but with the multiclass-on-one-charcater system, this would mean adding several thousand new quests just to fill out the XP requirements. They could add more daily type quests I guess, but I really wouldn't want to see WoW levels of dailies* ever again.

*For reference, with the daily limit removed, I once did every daily I could do at max level and all the lower level ones as well. I couldn't get them all done before the reset.