You do realize there are items that add to regen now, yes? Healers along eastern road, etc. Movement is no problem, especially thanks to barter and things you can find just laying on the ground, and many of the lowbie quests involve you recieving coins as well as xp. 10 in 20 minutes is perfectly doable. Just because you can't doesn't mean it's impossible, it just means you can't. Hell, you can get to 5 in under 5 minutes without leaving the academy/galadon area. Another 5 levels in 15 minutes as a lowbie? Not difficult at all, especially if you land a group. Sure it won't be as easy with every character build, but the time differential isn't enough to really be considerable.