Tides of War novel. After Garrosh used Molten Giants to destroy Northwatch.
Hamuul talks about the world tree as theirs too, and expresses his concern regarding what could Garrosh end up doing to it, now that he was shown willing to use said practices.
First of all, the AD is considered to be no more. Even if there are a few individuals that claim they are still, the entire organisation was merged with the Silver Hand to create the Argent Crusade.
Secondly, they’ve been trying to get rid of the Scourge that populated said land.
Assuming that they’d put any objection if the former inhabitants came asking for their homes, just because they are undead, goes against the very fact that they already have undead people working alongside them and in their own organisation.
It happened in the Third War, in Cataclysm, and in Legion.
Basically, with all major invasions that ended up threatening said zone.
If fighting for a land, which both sides consider precious or worth fighting for, is enough to give either a claim over it, then the same logic used to declare that the Argents can decide over Stratholme, applies to Nordrassil/Hyjal.
If the lone argument against the Forsaken settling in Stratholme, hinges on “But the Argents fought for it, why would they give up on it altogether”, then the same could be argued as to why would the different Horde segments, that fought for and cherish Nordrassil, simply give up on it altogether for an exclusive NE use.
It’s addressed as a matter than concerns the well-being of the entire planet. And required of the likes of Thrall, to rush to its aid when threatened.
Yeah, regardless of its initial purpose, the tree is now considered hallowed land for any faction/race that reveres nature. And the Horde does have a few of those too.
They are obviously not. We have Forsaken/undead members of both the Argent Dawn, and the organisation that took up the mantle after it merged with the Silver Hand.
There are other Forsaken amongst the Argents. Just to name some of the relevant ones:
If the argument as to why would the Argents block any Forsaken attempt at repopulating said land, hinges on whether they fought for it or not, the Horde could’ve had the same one in regards as to whether they’d allow NEs to claim exclusivity over the land of Mount Hyjal.