I'm guessing it's people that haven't played it (Destiny)

by Funkmon , Friday, October 23, 2015, 20:28 (3414 days ago) @ Xenos

I have watched successful runs of the encounters. That post Cruel put up was simplified, but it's fundamentally true. For example, the Warpriest has an attack that changes. When the oculus shows up, he'll captain bubble you or use the hobgoblin thing or the golgoroth bubbles.

That said, the rest of it is fairly accurate. The jumping puzzle doesn't have the platform, but it's the same.

Relic dunking: same.
Totems: same, but with more/harder dudes.
Warpriest: same, but he attacks you after the oculus so you must scatter.
Maze: same.
Golgoroth: shoots more balls, two people get a thing that can make them explode. I've seen this completed using the one pool method, not using two gaze guys. Seems possible for both, but easier with one pool.
Deathsingers: Same, but no cooldown.
Oryx: you get an extra knight near your pillar that will try to detonate your bomb.

The guy you linked to is right. It feels more like VoG than Crota, but it isn't that different. The difficulty in hard mode from the stuff I've seen is no revives. On runs with no deaths, it appears to be just as easy as normal mode, up until Oryx, who's a bastard.