So we don't really need the Damsels at this point, unless the Foundation is especially tricky. But as you said, we do need political access and support to Bretonnia. We need access to their waystones, their nexuses, their leylines, their rivers, and to Athel Loren. We don't need magic from Bretonnia, we need co-operation, and the Iron Orc thing is the price they have set for that co-operation.
That said, we've made a ton of progress, and it's possible that when we go to renegotiate with them, they'll lower their price and accept waystone secrets and the Iron Orcs will be forgotten by the wayside.
This is outrageous, this is unfair! How can we be a Master of the Greatsword and still have a lower martial score than a Light Wizard!