I read it less then a month ago myself and i will say this, if it was a majority or mentioned as such in Asunder why wouldn't the novel be a cited source then?
Its events are detailed on the page, and yet it makes no mention of their numbers being overly great in the Novel or description.
Its people are clinging to grammar and phrasing over confirmed sources.
Why aren't *any* of the fraternities' estimated sizes linked to Asunder? I couldn't tell you. Oversight and/or a lack of clear understanding with regard to the 101 of Wiki construction.
I guess someone is going to need to go over the book again with a fine tooth comb to see if there's any specific mention of the size. That or the game scripts, unless they contradict; that'd just be gravy on a biscuit.
I'm just going to back out of this regardless though (although I may grab Asunder off my bookshelf when I'm home later and report my findings) because getting involved in lore minutiae debates when I've only been a fan two months isn't wise.
Seven hells, I don't like doing it with franchises I've been a fan of all my life, even. Call me when we're arguing over how cute Leliana is.