User blog comment:Extra-Planetal/Even more Reaper logic fails/@comment-1221773-20120428221113

1.

2. There's nothing contradictory or nonsensical here. The existence of the Catalyst contradicts nothing established in previous games. Also, it is the Catalyst, not the Citadel itself, that ostensibly directs/oversees the Reapers.

3. Not sure what you're talking about here, I'd need a specific example. Generally, I believe it is explained that the galaxy adopts hit-and-run tactics to fight the Reapers, instead of more head-on approaches which would most likely have guaranteed the loss of forces deployed in that manner.

4. The location of the Crucible is kept top-secret by the allied forces. The Reapers aren't even aware that the Crucible is being constructed until the Illusive Man tells them.

5. When did the Reapers ever have the chance to indoctrinate any of these individuals during the war? Indoctrination only works in close proximity to Reapers or technology.

6. Has nothing to with the Reapers or in-universe logic. Blame the writers for not writing such an ending. Personally, I don't see the point of having such an ending, just as didn't see the point of it being possible to fail ME2's suicide mission.