Yeah, no progress at all. It's not like Enweil's military strength is in steady decline, or like Riombara is steadily advancing deeper and deeper into Enweilian territory.
A slow and bloody war does not mean a static war.
The gap is not significant, and largely attributable to large unusual hordes keeping Fheuv'n out of the picture since a while.
A while ago, the stats showed Rio vastly superior, yet Enweil caught up not that long ago. Then, a decline again. Before you took Lopa and attacked Enweilieos, Enweil was occupying Kuugl and doing a BTO (looting being bugged and preventing the takeover from being completed in time). Rio also lost Droxago.
It's a pendulum. If the undead continue to spawn in large numbers in Fheuv'n or if you manage to maintain these assets when Fheuv'n returns, then it'll be significant progress on your part. However, if Fheuv'n came with it's full army tomorrow, I'm not convinced that the Confederates will not be back in Kuugl doing a TO as you seem to suggest.
No, that's not progress; that's the opposite of progress! See, "progress" only counts as such if it's in the direction of Chénier's interests, not against them! 
"Progress" is measured in solid trends. The successful attack on Enweilieos is important, indeed, but time will tell if the impact will be that great or not.
