Impossible to get a group for Arah Story
I’m going to answer my own question and say the reason Arah is ignored by players is because of the frustration of Orr. Countless threads have been made about Orr so I won’t go into detail about the mob cluster , mob difficulty and just the overall frustration lvl of that zone.
The right answer is that no-one does it because the meta-event leading to open the gates is constantly bugged. Anet hasn’t bothered to fix it during the two months the game has been available. Not that it’s important or anything for their end-game dungeon to be unavailable for 90% of the time.
I usually see at least one Arah story group a day on Yak’s Bend. Arah explorable on other hand, I never see.