I think the crucible in itself makes perfect sense within the context of the plot of ME3. It's about the different races of the galaxy, setting aside their differences and working towards a common goal to end the annihilation of all intelligent life.j-e-f-f-e-r-s said:As for the crucible, it's a mix between Maguffin and DEM. The way that it is revealed in the third game without any kind of foreshadowing, and is presented as the only thing that can stop the Reapers... that's Deus Ex Machina. The fact that the entire game is pretty much a series of fetch-quests to make this thing work which you have no idea about, or how it works... that's Maguffin. An item important to the plot simply because the plot says so. Devoid of any thematic or narrative value in and of itself. The Crucible is important only because the last game in the trilogy springs it on us that it's the only way to defeat the Reapers. How and why is left unexplained until the end. Which then ruined everything.
So yeah... maybe you should stop calling people out for using perfectly valid terms to describe the omnishambles that was Bioware's finale to the Mass Effect trilogy?
And, they do that by working on and defending a device that different races of the galaxy has worked on across an unknown amount of extinctions with a common goal to end the annihilation of all intelligent life.
It could have been implemented better, sure. But it goes along fine with the themes of the game.