User blog comment:The Milkman/Shades of Purple/@comment-5287758-20120930050555/@comment-24174486-20121002182309

"suddenly just becomes the solution and answer."

Um, no. As I already pointed out, you knew all along that you needed the Catalyst to use the Crucible. And as Legionwrex points out, the Crucible is a far more important part of the resolution of the plot. Neither the Crucible nor the Catalyst on their own would resolve the plot.

"And, this kinda disappointed me, no Harbinger fight?"

There is a confrontation with Harbinger. It ends exactly like you would expect a confrontation between a group of soldiers on foot against the biggest, baddest Reaper around.

"Organics creating a Synthetic which creates synthetics by killing organics to prevent from creating synthetics which would kill said organics"

Every time someone calls the Reapers "synthetics", a baby krogan dies. Won't somebody please think of the baby krogan? XD