I can tell you one thing--anyone that doesn't take the quest from the datapad, or misses it, misses a lot. It would seem that there aren't that many quest givers at this point on the planet, so if you miss one...well, it's not good. Especially the one I missed, I'm guessing.

OP, I found a quest from a datapad at the Duros sector taxi that I missed--or rather didn't take at the beginning since It didn't seem to be something my Sith would concern himself with, then forgot about. On the other planets, there were more than enough quests to skip one or two and still get to the appropriate level--I figured it would be the same here, but perhaps not. Apart from that, I found one with a skeevy implant doctor and another with stolen data. That's it as far as I recall. I'm, hoping this duros sector one leads to more.

That doesn't address the issue of why we're not finding more than the 2 or 3 side quests that I've been able to find on Nar Shaddaa. Ignoring the ops level, unless there is one quest here that leads to all the others--one which is missable--then there's something wrong here.

I'm having the same problem. I did Balmorra, including the bonus series, I got to Nar Shadda and found a couple of side quests to do, but couldn't find anything else, so I did the class quests. I know there're more because I'm still to low for Tatooine (22 or 23, can't remember off hand) and You don't have to do heroics to get to an appropriate level. I saw a quest marker for a Major Danarus (sp?) but there's no guy, just the marker, and I can't find any others. Right now, I'm wandering blindly, hoping to find a quest marker that isn't showing up on the map--only flashpoints there. Got a weird thing with Quinn, too. He wanted to go back to the ship and talk, but apparently he changed his mind, beause when we got there, he had nothing to say.