I wish I could have seen that newbie channel breakdown, or a log of it, but that helps a lot to know.
I am 100% cool with exploring early, it is nice to get out and do stuff instead of kill kill kill kill killing mobs right out the gate...plus if you are moving around you are more likely to chance across some out of place dropped loot to scoop up. The main thing is finding a good rinse/repeat way of doing it that won't get you killed needlessly. Sure, a few deaths here and there aren't anything huge, but I would hate to have a hero up fending off con-death and know that the 2 con points I am trying to salvage or acquire were burned at level 5 because I walked into some level 18 aggro mobs a few too many times.