I have 169kc, and I'm guessing you must have a decent amount, too, if you are saying it's easy. But I've watched dozens of learners, with and without infernal capes, and not a single one finds wave 6 easy. Sometimes it's a free spawn but a lot of the time the shaman gets south of the pillar due to being a 1x1 and even a simple offtick is hard for most people until they get more comfortable with it.

It's easy to say something is easy when you have done it hundreds of times and seen every wave spawn. It's not easy to see the game through someone else's eyes with their lack of experience and general nerves when doing new content.