And this is where Bioware succeed. it's the only Bioware game I am interested in anymore.
Lastly, lets be real here. The standard of prose quality, plotting, and characterization in classic science fiction isn't particularly high. Sci-fi is niche-popular because the ideas that the stories contain have a peculiar appeal to a particular type of reader. ME's writing doesn't hit those notes all that often (and when they do, it's usually in a throw-away description of a random scannable planet), but in terms of writing believable characters, I'd put ME ahead of a good number of classic sci-fi authors.
Had Bioware chose to make another SERIOUS BUSINESS Action RPG, it would have failed miserable. It however works just fine in a B-Grade Sci-Fi space soap opera, which is always what Bioware said it is.
Also the pruning of pretty much any recognizable RPG elements also worked in it's favor. It actually made it a far better Game, and much more enjoyable.
This however does not translate well into a Serious Fantasy Action RPG, as they are now discovering.