Honestly, you aren't wrong. Doesn't mean it isn't disappointing considering that characters from Shadow Dragon and Fates are by far the worst characters in the series, Shadow Dragon because the characters are nothing more than generic units with names and faces attached to them, and Fates because the writing is at an overall low point for the series with that entry. Like, I understand having a few Shadow Dragon characters because it's a remake of the original game in the series, but a whole DLC pack focused on the most boring and non-essential characters? Who are they even going to put in that? Barst? Ogma? Jake? (Actually Jake would be cool.The Bride class is a thing in Awakening.
A thing that was officially localized and released.
And it showed up again in Heroes.
Why would they need to sneak anything?
A crossover game focusing on the most popular entries? Why I never. Seriously you guys are probably getting more attention then certain other franchises in crossovers.
Imagine how Persona 2 fans feel. Heh.
You know just when I start to sympathize with pre 3DS fans. Someone posts something like this and I'm suddenly glad your being ignored. Look I get your upset but stop insulting people because we like characters you don't. Wether you like it or not these games are popular.
But yes, Awakening and Fates are the most popular entries and the most visible so it's not odd to see them get even more characters. It is odd that Ike, Roy, and Alm don't appear to be getting in though, as they are all way more popular than anyone in Shadow Dragon, a game which nearly killed the series in the west. It would make more sense to add them or do an Echoes pack over doing Shadow Dragon.