User blog comment:Garhdo/Unhappy with the ending? Make your own!/@comment-1786741-20130225182538/@comment-3543731-20130227045139

Lol, well to be fair, a lot of villain plans tend to seem overly complicated but to me this doesn't seem too over the top. His plan allows for civilizations to live freely without any outside intervention (up until the mass killings that is). And remember he's looking to see if all these races can come together and find a new solution. Any intervention from him contaminates the sample and ruins the experiment. Like he said when explaining synthesis, he doesn't want to force it; WE have to be ready (and if you, Shepard, believe we are ready you can choose synthesis :D). As for whether it's a "good" solution. I mean you even agreed that the Catalyst thought it wasn't perfect. Good? Not really. Acceptable? Yes, for now. To him the pros out-weighed the cons and that's all that mattered. (Consensus was achieved xD)

And as for the no back up plan. I look at that in two different ways. 1) He wanted us to prove him wrong; show his solution was wrong. If we beat him we prove there is another solution. And 2) He was created by one of the most arrogant races out there (the Leviathans) Even if he didn't want a new solution to his problem I doubt he would think we were strong enough to defeat him and his army.