This is my opinion and I think many may disagree with me, but here it goes.
TL;DR
I think the fact Anduin is the High King of the Alliance removes any threat of a bad surrender scenario.
Any doubts just look at how Anduin tells Genn: ENOUGH !
When he is about to lose his composure, due to Sylvanas.
In the throne room of Lordaeron scenario.
As AdĂtu said: Unconditional.
I consider the Horde lost moral ground in both wars.
Lost territories can be conquered again.
But what defines you as a person/faction cannot, be restored.
In example why Jaina let the Horde kill her father ?
Because she had fought alongside that people in mount Hyjal and they proved their value on her eyes.
That wasnât the Horde everyone including her father remembered.
That was different.
That is untill WoW came âŠ
Basically we got striped of our underdog status with Garrosh, turned in to a war machine faction.
Lost Cairne in the process.
Honor became questionable, when we canât figure if itâs Warsong/BlackRock clan Honor (like Orgrim Doomhammer or Thrall Honor (Values of compassion he learned from Taretha Foxton, closer to Frostwolf clan ) that rules the Horde.
That became evident when Thrall was confronting Garrosh in his Throne room in MoP.
To both characters one is dishonourable.
Both are right.
Garrosh is dishonourable according to Thrall Horde principles.
Thrall is no longer a Orc according to Warsong/BlackRock Honor values.
We lost what little was left of our Honor (Thrall Honor) when Sylvanas decided to go full revenge mode.
What ever was restored by VolâJin, with Varian, it got burned in Teldrassil.
Warcraft RTS conflict was more like in my opinion: the strongest survive the weak perish.
The Horde won the first game, the Alliance the second game.
WoW conflict reminds me more of anime, battles where the protagonist confronts the antagonist, the outcome of the battle is decided by who has stronger principles/reasons to fight.
Any doubts look at this scene:
Why is Anduin talking to Sylvanas ?
He has Genn, Jaina, Aleria with him, just attack, already, enough chit chat !
If your principles are unjustified or questionable to say the least you already lost.
Thatâs my thoughts.
Cheers.