At this moment it's not really worth doing the abundance event any longer.
Even in a 40man raid you're hunting for glowing balls that dissapear in a few seconds, or if someone simply runs in front of you, while a huge range of corpses is laying on the ground cluttering the view.
You're not even sure you'll get the max amount of rewards anymore either (even with a full group!)
Did a couple of alts this morning, and once the event even took a dundun token without starting the event (i could still go in the cave but didn't see any timer and stayed for 10 minutes before eventually leaving with zero rewards). the other runs did work but often i got 600 unalloyed abundance while running around trying to gather as much stuff as possible.
Honestly i don't think its worth doing the event until blizzard fixes it again. It was lots of fun earlier. Smaller groups made it fun and not laggy, but instead of putting it in its own instance or limit the amount of people per phase locally the fix was reduced rewards and not remove the hard cap of dunduns (which is a horrible decision in on its own).