I think the reason people are upset really boils down to (for you super-young gamers) that a lot of us (and I'm not that old, I was born in '86) grew up with extra downloadable goodies for video games being 100% free. This includes built-from-the-ground-up multiplayer maps and game modes (Jedi Knight series, Valve games, Quake series, Unreal, et al), singe player content (Star Wars/Lucas art games, Sierra Online adventure games), and then the tradition cheap $20-$30 expansion pack model which added SIGNIFICANT amounts of game and story instead of this incredibly unsatisfying 1-2 hour deadweight (this Kasumi thing will reveal NOTHING about the greater war against the Reapers which is what everyone and their brother here actually cares about, not some stupid art dealer chick. These include:
- Wing Commander Special Operations packs
- Star-Craft Brood Wars
- Rainbow Six's various expansions (Urban operations, gold eagle, etc.)
- X Wing Vs. Tie Fighter's Balance of Power expansion pack (added two story campaigns!)
- Empire at War's Forces of Corruption
- Age of Empires Rise of Rome Expansion ; AOE 2's barbarian invasion pack
- Shogun Total War's Mongol Invasions pack
So see the thing I'm saying is that companies used to very regularly put out 20-30 dollar expansion packs which were essentially sequels basically only without a new engine designed for the game. (maybe a few game play tweaks and new units, but that's about it). The problem with Kasumi DLC is that you're charging half to a third the price of a proper expansion pack, but... nothing major is happening in the overall plot of the game (the Reaper war, you're only giving another 1.5 hours of side-plot/story, you're adding a non-fully immersive squad member, and you're adding gimmicks like a new SMG. Big whoops. Let's go after Harbinger, who gives a crap about an SMG and flash grenade?
So that's my take on it. Will I buy it? Yes. But will I be satisfied with it? Eh, probably not, I would really much rather have a proper expansion pack that actually advances the story. I would rather have that than ANY DLC content, free or not, I really don't care. The free content isn't that great (and this is coming from someone who actually bought terminus code on ebay, dragon age just for blood dragon armor, etc.) and comes off as uninspired when you think about the breadth of weapons and armor options in Mass Effect 1.