I think it proves that Bioware never meant to make a statement about impractical armor through Iron Bull.
It wouldn't.... if the comment about the impracticality of armor was just something that has been made by Iron Bull. It wasn't - Cassandra tells Vivienne why she doesn't wear ornamental armor as well. Blackwall and one of the Avvars make fun of Vivienne's extravagant clothing. Solas and Dorian have a back and forth about theirs as well and Iron Bull laughs at Dorian wearing 'skirts'. Dorian, on the other hand, makes a point about how stupid Iron Bull's armor of choice is (and IB takes his time to explain that this is part of Qunari culture).
The statement is, I'd say, pretty strong then. But that doesn't mean that Bioware doesn't accept the levels of 'impracticality' as long as there are reasons for its existence, be it personal or cultural and I'm not really sure why some people misunderstand it as categorical NO to any sort of impracticality or slavish dedication to uber-realism (or think that people who reference Bull's comments think that way).
Like I said, the only issue I have (and I feel Bioware has) is an armor that is utterly impractical and exists in the game for no reason other than titillation... or maybe "just because it looks cool" (yet doesn't fit the world or chosen art style whatsoever).
It is entirely optional--which is what people were asking for when asking for a certain armor. However, this armor is being defended as "It's entirely optional, so it's okay that it's impractical and it's established within the DA Universe." Do you really not see the parallels?
No I don't, considering that the context for both is quite different. I think we've established already that nobody really was asking for blue-black mud armor - and if THAT was Bioware's response to "give us boobplate as option" I think it deserves to be on a list of Best Game Developer Troll Moments of 2015 
And, no, Cassandra would not complain if she were wearing boobplate or mud or armor like those from Origins, though people act as if she would declare mutiny for it because of the impractical design. I still think it's an odd "spoil of war" pack to release. It's perfectly fine for the Avvar, but I don't see the Inquisition giving up their nice, expensive sophisticated armor for some muddy bits of leather, cloth and metal. Yet, I really don't see anyone screaming "realism!" about that. They just sort of accept it, yet use the realism argument to censor other armors. Just an observation, really.
I think it's odd as well, as nobody was really asking for it. I think there's something else going on, maybe in terms of testing systems (I remember there were some problems with JOH being simultaneously released for all people in all countries for PS and Xbox 360 - someone messed things up and the DLC was either temporarily overpriced in certain countries or didn't show up in the store for a few days after release date) or seeing how many people would be interested with small/random content packs.
I'd also like to point out that they've released it exactly a week before E3 - not sure if there's a correlation, but I recall some mentions of upcoming E3 on some DA dev twitter accounts and it seems to me like something is being prepared for it.
Anyway - I actually got myself this DLC and I'd like to point out that this Avvar armor only comes as medium armor. It's not restricted to rogues, but it's medium armor nonetheless - it also has pretty mediocre stats. Nobody will be really equipping it on Casandra or anyone when they go to hunt dragons or do anything on higher levels or they'll get pummeled. It's more of a costume than it is an armor, it seems. Spoil of war indeed.
Missed the point I was making. I wasn't asking for that armor to be imported over from Origins, just using it as a design reference. And it changes Iron Bull's body type? Seriously?
Who said they didn't use dragonscale armor as reference? Yet perhaps they figured that Cassandra wouldn't wear anything of the sort when designing armor for her (personally I think she looks absolutely badass in her mail armor and she doesn't need anything else).
And yes, I checked - it does change Bull's physique: gives him a leaner body type (that... I don't mind, personally, lol. Not a fan of bulky types).