Because it never hurts to remind certain people that what they are asking for is already there.
Oh, would you care to share your sources showing the retcon? I would like to see it. Because I have all these sources in game and out saying the opposite and if you've information I've missed I'd be happy to accept the new lore.
As for the Blood Elves in Telogrus, as well as the high elf wayfarers, seem to be there to swell the ranks of the Void Elves. And a Void Elf, as so many others have pointed out, is 'not what was asked for'. The ranks of the Void Elves are very likley expanding, but not the exiles.
But I am happy you see the Void Elves as supplanting and replacing the exiles. Given that is probably their purpose within the Alliance, it speaks to a job well.
Except you inserted yourself into my response to Ielenia, who is most definitely not happy with the restatement of canonical fact. So my response was general.