I thought that there was a conjuration that can gain valor tokens also... three of them gives all friendly creatures melee +1, if I remember correctly.
Yes, that's true, but they are effectively a completely different Valour token. It's like Gate tokens, Charge tokens, Mist tokens, Wrath tokens, etc. They just reused Valour token, since they were already providing them with the set. You are right, that it does confuse what should be a simple and absolute point though...