At what point did Bull make decisions? A promotional clip made for a trailer which never happens in the game isn't making decisions. He has no authority, he's under your command. I'm not sure where you got the idea that these other characters make decisions for you...
And your other argument is the fact they gave a cheesy name to an achievement??
I've already pointed out how random the cast of Origins is compared to these guys.
That cast is mostly consistent with the themes of the game. A big theme of DAO is Death. It comes up almost everywhere. Even Sten lives up to this in his recruitment. The other big theme is Duty, which he really lives up to. Although they're entirely different characters, Wynne, Alistair, Sten, and Leliana talk about this stuff often. And even Morrigan, but she plays the opposite angle of Survival.
My point is, when they have a good subtext that all the characters get into, it doesn't feel that random. That's well thought out literature to me. Not to mention the Wardens are represented by neutrality and diversity anyways. It can't be that random because that's what they're billed as to begin with.
DA2 is often about home or identity. It does it well. Everyone from Fenris to Anders to Merrill go on about it. And DAI is Faith. Except it fails at it. It's so pointless that players like yourself think Female Elves and Solas are the main hook. And they're not necessarily wrong. A game about inquisitions and the Chantry lacks direction to the point that one can convince themselves it's really about playing Elven Twilight. And you get to be Bella Swan, who entices the mysterious outsider with a certain "something"... Yet has seen everything. The only thing it has in common with the rest of the game is it's for people who want their egos fed. As if being worshipped wasn't enough.