I understand. It is normal to try to blame others for your troubles, and you are trying. The organization has a database of names and profiles that they feel they can match up. For something that is not in their range they do not have enough matches to deal with. That’s all. Getting along is one thing; marrying is another.
You do seem to agree that not necessarily are you talking about marrying an Ashkenazi. When we come to the point is the forseeable future where Sfard/Ashkenaz is meaningless they would handle both accordingly. Would you understand if they don’t handle out of town Shidduchim?