Yep, I got heavensward on launch day, and I was around 30. Back then the level 50 duns and quests gave no exp, so I had to grind a lot to reach some HW content.
My friends got the game in October, and registered HW when they reached 50 because they didn't want to waste any exp. They got to 53 or so. And still had to do grind a bit in the way to 60