But that's just the thing; Inquisition claims that the Dalish have always been wrong, about nearly everything in fact.
They are not afforded many, if any, meaningful apologists/good guys; they do not get a Giselle, a Cassandra, a Cullen, a Leliana, a Bethany, a Malcolm, a Justinia. They get Blood Mages, xenophobes, pridefully idiotic Keepers, and outright bigots. And among all that rabble a few meaningless exceptions are born. But ultimately, they were the savages that got too big for their britches and they paid dearly for it. And now all that they can do is blame the humans for their problems when they have no one to blame but themselves. The entirety of their identity, a lie. Their noble cause borne of ignorance.
They are an absolute joke; a caricature and nothing more.
A deconstruction of a myth is hardly a caricature. The caricature would be the myth itself.
The Dalish have never, at any point in the series, been presented as particularly well grounded or vindicated in their knowledge of history. From the start they were acknowledged (and self-admitted) to be building a society off of ignorance of the past- a natural consequence of which is that when you recreate history that no one knows anything substantial about, you tend to create the history you want rather than the history that was. This was pointed out years ago amongst the fan base.
The sins of Dalish culture and weakness of their history have been obvious from the start, and weren't exactly pardoned by the historical narrative they kept. Blood Mages, xenophobes, pridefully idiotic Keepers, outright bigots... none of these were ever presented as good. Ever. They were always moral flaws on Dalish society, regardless of history. The issue is that people (fans, the Dalish themselves) were content to gloss over or downplay the bigotry of the present because History excused it.
Well, when you have a Cultural history which admits to being founded on ignorance more than truth, that turns out to not be true... the History excuse to nastiness turns out to be just that. An excuse.
The question facing the Dalish going forward is what else they will be, in the present and in the future, when the excuse of History is taken away from them. And that is a topic in which the Dalish can believe in something other than a caricature of the past.
(Why History of the long-distant past was used to justify the sins of the present is itself a peculiar thing, but enough on that.)