I have a wonder, how the heck did qunari learn to master the eluvians when the pinnacle of magic in Thedas, Tevinter Imperium did not. And qunari hate magic? Would someone please explain this.
I didn't see the Qunari as 'hating' magic, but more thinking that any individual or even smaller (than the Qun) organization trying to deal with magic, is too dangerous.
But the Qun as a whole may be seen to welcome magic. But again, only as the whole of the Qun. Magic is the ultimate tool. But emphasis on tool - thus the Qunari distrust of any one person's ability to control their magic (and all its subject matter).
This Qunari in Trespasser may be the vanguard, or main force, or splinter faction of the Qun. In any case, the Qunari don't 'hate magic', or even fear it (exactly), as much as they distrust it, before it may/will reliably become part of the Qun.
And they IMO intend on magic and the Fade to become part of the Qun, just as the rest of Thedas. Managed.
I think I can see at least some element of the Qunari dealing with the eluvians for the idea of their greater good/role.