you make it fit, no one wants to read essays on these, well except the really interested, who can spare the time, so I do not take offence if you didn't read the 11 pages on this topic to see how well "healing" forsaken can actually fit and how exciting it can be. If you've read em all and you still disagree, then i'llbe convinced you just don't like the idea, as long as you gave it a fair chance.
there are other options. Could give the forsaken human san'layan (vampires), they're not ghouls like the current forsaken are, they look human and use a humanized version of the new blood elf model, giving access to players.
another option some suggested was using groups like the Syndicate, Defias Brotherhood, Ravenholdt - but all these bodies scream alliance human as they are tied to the alliance and have not been tied to the horde prior to this. If they had been and we had established a non-playing group of living humans on the horde, i'd say go for it. but using them now would look too forced and again in the mind of players would feel like theh orde has become the new alliance, because alliance humans are on it. You don't get that feeling if you're using the forsaken or using vampires.
The problem with human san'layan (vampires) is that they're not really human even though they came from human. We don't think of Worgen as human either, and part of the attraction is not just the model actually having a human.. i.e me to play with on the horde. Which is why I think cured forsaken is better than all the other options, and can actually work quite well, with a little imagination too.