Xewaka wrote...
But then there's a clear jump in storyline that didn't happen from vanilla ME 1 to vanilla ME 2. In ME 2 to ME 3, the game's still functional, but the plot is showing a clear hole.
I consider DLC no different from a novel or a comic from a plot regard. They might expand the background and offer new insights on the setting, but they should not be plot critical for the main continuity. Otherwise the optional content stops being optional.
The plot always shows holes. There was one between ME1 and ME2 where a particular Shepard was doing stuff despite the 'player' not controlling him. Then there should be one between ME2 and ME3 and Bioware decided to flesh out a part in the form of Arrival.
Technically this DLC is merely a form of 'gap' being brought to life. There is nothing you can really do there, so the only reason they made it is to give you an idea of how things became like that. They could`ve just as well not tell you and summarize it later on in ME3, but they decided to make it somewhat more 'real' to the player.
At least, that`s how it comes across to me; the result is the same, they just show it to you and give you an option to play through it instead of watching it as a cutscene.
And that`s pretty much what it is, a playable cutscene. Kind of like how you got one in the beginning of ME2, where you had to rescue Joker. Is it canon? Most probably. Is it necessary to make it a DLC? Most probably not. But it was probably a bit too long to include in ME3, so they made it a DLC.