Metroidvania
People called Romanes they go the house?
And we shouldn't have to think up something to fill in the plot holes or come up with something that makes the ending consistent.
This.
Anyone wanting a broad strokes ending that leaves EVERYTHING up to interpretation or speculation for the end of a trilogy, explain to me why you'd want to fill in ALL the gaps.
I don't mind bittersweet (although taking away options, be it happy, sad, or absolute failure doesn't sit well with me), but something like Return of the Jedi (the original), did a good job of closing the plot off while leaving things open for future happenings in the universe.
The only plot closed off in ME3 is the reapers are now either dead, under "shepard's control", or no longer care, since everyone is now synthetic. The only real closure we have is if the reapers are dead. If they're not, how do they interact with the universe? We're given zero nods in this direction other than them taking off from earth. All of those other plots are now left abruptly hanging, since your crew is stranded in god knows where and the massive war fleet is stuck in Sol system. There's so much more to the story we are simply told to "imagine' or "interpret".
That isn't an ending, that's a plot contrivance to abruptly close off the universe while simultaneously gutting it to such an extent that a game far in the future can avoid your ME1-3 decisions since the universe is in such disarray with the relays exploding.