Of course you would completely miss his point just to get your daily outrage out.
They aren't taking away decisions at all. That is his entire point, if you know that you just have to use a certain set for each different encounter that is literally having no decisions since you are literally just using the one set you know you have to. But having to make a set that will work over the entire Dungeon without changing does require far more decisions, since you have to decide what part of the dungeon is more important to gear towards, which talents will have a greater impact against certain bosses/trash etc etc.