Dueler's Guild (Horde)

When you speak to one of the guards and select "I'm here to duel." you'll receive an aura (with your buffs) called "In Queue" with the flavor text reading "Currently in queue for the Dueler's Guild."

Is this broken? Timed? I got the lead-in quest from the Port of Zandalar, made my way over to the Mugambala, got this quest proper, talked to the guard, took the dialogue option that I was here to duel, and that was it. Quest completed, with nothing else to follow. Ran around with a friend in the arena looking to see if anything would happen with other players...nothing.

About ten minutes later, long after I'd left, my friend got pulled into the duel event with no preamble--and no opponent.

I accepted this quest and spoke to a guard which then completed the quest so I turned it in a forgot all about it. Until a half hour or so later I got teleported to some pyramid style thing with some other guy who was like what? And I was like what? and then we fought each other and decided to let each other win 1 I guess round? Because after I won the first time we were teleported back to each other, him with like very low HP and he was like hey let me win and I like sure why not. The quest having been long since turned in, we tried to figure out what was going on without avail. Fun day.