What does "5 seats" in the subject line refer to?
Also, is she on the outbound or the return? (Just curious if you are fuming that she was downgraded on a 404 mile flight or 712 mile flight.)
Sounds like you paid 40,000 miles each way. Lowest coach award one way is 12,500. i say you get 27,500 mile refund plus a little something for your aggravation.
Clearly she has suffered a loss here. But in the grand scheme of downgrades, this seems small, and history indicates you should get the somp deserved.
Irrelevant but curious: Why redeem 80k miles for this route in F anyway?