Lord Mountbatten Reborn said:
The main thing that I noticed above all was this:
It did take me a while after things had died down to ponder into all the other issues with the ending, but out of everything this stood out instantly and I wondered why the hell the Catalyst was operating on such, as the Reapers put it, "incomprehensible" logic when I had managed to prove it wrong.
Seeing people claiming things like this as a plot hole always bothers me, it's a logical misinterpretation. The reaper's plan is to wait for the most advanced civilizations of the current cycle to reach a certain threshold before initiating a cull, this is why they leave one of the ships like sovereign in the system watching to send the signal back. the plan is not as people say we save you by killing you. People mistakenly take the more individualistic view of this where the reapers claim to take the macro view, the problem as stated being organics always war with synthetics, eventually as a means of self preservation, the synthetics will wipe out ALL organic life, not just the most advanced races that could cause an immediate threat. Consider it as though it is their belief that they can cull several high civilizations every 50,000 years or let "nature" run its course where there may never be any civilizations again.
Aside from that, all of the mass effect series we have been fighting to stop the reapers and their agents (with some fun pit stops along the way) and were barely able to defeat sovereign without severe losses. Then, throughout the remainder of the games, they are empowered to even greater and greater extremes to the point of near invincible gods where we see their attacks rip through capital ships in a single pass. Then literally the FIRST MISSION after the opening scene and tutorial of ME3 they tell you we are going to make a super weapon (because, lets be realistic, they made them unstoppable in any acceptable way) At what point did you think, this has all been totally reasonable so far but this deus ex machina at the end takes it too far?
All this being said. I like the Mass Effect series, all of them. I enjoyed 3 and I liked the end as well, because I'm one of the people who realized some things a long time ago
A) most games have plot holes of varying degrees
and B) If you want a great written and story experience DONT go to bioware! thats not what they are good at contrary to what most people have convinced themselves of. they do many things well but come on you fight "the reapers (they reap ppl), the collectors (take ppl), the illusive man, and the shadow broker" They never really tried very hard with a lot of this stuff did they?