This is poor quest design. If you are unfortunate enough to start it right after someone else you basically get a do nothing turn around the circuit.
Stop doing this. It’s not compelling or fun to watch someone kill everything right in front of you.
Yes, I understand it’s not a big deal but that doesn’t change the fact that it’s a poorly designed quest.
I dont do quest because most quest now are like a little kid made them and in the real world its not like this
There are multiple of these “shared phase” quests in Systemlands - including the “Hyphae Patrol” ones for Night Fae’s mushroom guy, which you have to do at 1am on the dot of server reset to not spend an unholy amount of time doing, as your on-rails journey around a buggy zone filled with “no line of sight” errors drags on.
It seems to be cross-server, which just makes it worse.
At least the Korthia quest has a speed-up button, so you can (as I had to do this morning) screw over your fellow player by strategically overtaking them and then stealing all their kills before they can do anything.
Is it fun?
HELL no. But Blizzard has long had this curious fetish for pitting PvE players against each other (I think Ghostcrawler once mentioned in an interview that it was done deliberately).