The OG plan was that all the paper documentation was in one building, thus we blow up the building and we are clear.

Elliot diverted those papers to several other buildings hoping to buy time/assuming the dark army needed them to be in one place to accomplish their task.

He was wrong. Not only was he wrong, we can assume the last two episodes were basically subterfuge to keep all the minor players occupied while the Dark Army did the real work. We can assume Welleck/Elliot did the heavy lifting up until he asked Angela for the job at E Corp. When Elliot diverted the packages we can assume dark army took over on the low and basically copy/pasted Elliot's plan to the other buildings across the us. They probably just needed one last thing (perhaps the code Angela ran)...and shit, that might have even been bullshit just to keep everyone occupied.

In order to save hundreds, Elliot's responsible for the death of thousands.

>Were those buildings mentioned in the prior episodes or prior
>seasons? Am I wrong, or were neither Eliot or Mr. Robot aware
>of the 71 buildings being a target?