Most likely the "mobs" will come when you take on the Strike mission and there are two other Guardians with you. That's the way it was with the Devil's Lair, because if you went to the same area in Explore mode you wouldn't be ambush by the same endless flood of Fallen and Hive enemies at point where your Ghost had to deactivate the security system. But yeah dude you totally missed out, next time get ballsy and rush in guns blazing. I recommend being level 8.

yea we thought so to but we never really ran into any we did hit some higher level enemies that were a pain to take down (12) but nothing as crazy as the ogre in russia

Never assume