I too would be interested in their response.
I just talked about this in another thread so I'll summarise.
I think the process is automatic and groups kingdoms based on influence, then on phases won in last KvK, then excludes kingdoms that have fought recently and then picks the closest pairs.
There are so few big kingdoms that this will lead to mismatches every week.
I suppose they could make the influence groups smaller to try to make the matches more even but that could possibly see you facing the same kingdom every 4 weeks. Or just a few kingdoms that you fight again and again.
Would you prefer that? Or do you have an alternate system to suggest?