I've read she wasn't just a "daughter", she was quite active following in her papa's footsteps...
You're right, I've jest read an article about her and Dugin and she was as f*cked up as her psycho daddy ;/
Dugin is probably better known outside Russia, than inside. For most people his death doesn't mean anything significant
The thing is, pro-Putin Russians were telling me the same thing about Politkovskaya - that she was better known in the West than in Russia and Putin would have no reason to order her killing. And yet, she was deemed important enough to be assassinated. Some were saying that her killing was Kadyrov's "birthday present" for Putin. So I guess all kind of f*cked up stuff can be going on in Russia...
Galeev seems to think that the daughter was indeed the target
According to this article there are voices coming from Russia that Dugin was the target possibly because of the internal conflict in Putin's party:
wiadomosci.wp.pl/jest-ustami-putina-mowi-co-wladca-rosji-jedynie-sugeruje-6803835344521920a
Dugin was called in Russia "contemporary Rasputin" (I remember a Russian friend from Moscow making such comparison too) and just as Rasputin was killed on the order of Russian aristocracy for talking the tsar into going to war that Russia started losing, in the same way Dugin would be "removed" for being the ideologist behind the invasion of Ukraine.
I'm guessing it's just a theory though.