Not to answer for
@Manbearcat , but for me, I don't like the phrase because it reads like full on collaboration, where everyone agrees on how things go, and then that's what happens.
But that's clearly not what's happening most of the time in Blades in the Dark, and most similar games. Things don't go in a way that everyone agrees with. The key moments are decided by dice. The GM introduces complications and obstacles regardless of player desire. And so on. There's not some grand consensus that guides these games.
Even games like Microscope and Kingdom which work in a much more collaborative manner still don't function that way at all times.
When people describe RPGs in this way, it's typically seems to be for one of two reasons. First, they don't fully understand how the game works and how poor a categorization the label is. Second, they're trying to portray the game in a way that is inaccurate.
I think you're falling more into the first group than the second.