I agree to an extent. I ran around exploring coerthas and mor dhona as a lvl 16 just to see cool new places. Found a lot of awesome looking structures and landscape, dodged some mean mobs. Finding behemoth's dominion was really cool.
Felt really empty though. A lot of areas had very few mobs, and nothing in particular to do except expose the map. Hopefully they will fill it up a bit later. It wasn't that tricky at all getting around without agro, except some narrow ledge with flaming ogres. That was fun.