The problem with this and the other seasonal instanced bosses is that, mostly, you don’t need a tank and a healer. If most people are highish level, they can cope without. Any 5 players would make queues almost instant.
I wonder if the amount of people who have the mount might be a factor too.
I got it the year it was put in so haven’t had any reason to do it since - then there was the year they over buffed it and they dropped like candy, then they nerfed it again.
I’m comparison it’s not like the Love Rocket in terms of rareness/desirability.
Unless they’ve added anything new a large portion of players aren’t going to bother.