According to the Arrival DLC, a Mass Relay blowing up wipes that system the **** out right? I mean, that was the big thing in that DLC. We blow up that mass relay, and it wipes out the Batarian colony/homeworld thingy.
So, does it not stand to reason that in any ending where the Mass Relays are destroyed... it actually has a *worse* outcome than letting the reapers do their thing? Any system with a Mass Relay is likely scythed clean of life now. Earth, (which got blown the **** up in the end I got anyway), Tuchanka, Thessia, The Turian, Salarian, Volus homeworlds...etc...
Also, why the hell was the Normandy in a Relay at the end? Where were they going? Shep is inside the Citadel figuring out which color of destruction he wants, and when he chooses red or blue, the Normandy is racing like hell to go *somewhere*? Last I checked, they were fighting the reapers above Earth.
In addition, your crew is all in London at the end. You talk to all of them on the way to the pillar of lightness. So... how do they get back on the Normandy so it can go like hell somewhere and get stranded who knows where forever?
Also, laying all that aside for the moment.. Your crew, being marooned *somewhere* suitable... Maybe a dozen crewmembers or so (there never were a lot of crew on the SR-2) left to die a slow death from starvation, exposure, or whatever.
Going back to the destruction of the Mass Relays. The largest fleet ever assembled, Turian, Quarian, Asari...etc. Thousands of ships are all now *stranded* in Sol space. Assuming they survive the immense destructive force of the Relay exploding and the Crucible firing.
I mean... did noone at BW even stop to think about *any* of this ****?