I really question their decision to go back for the Desert and Girich... With 19 nobles for 10 regions, they've now returned under the 2:1 ratio, which is likely to paint them back as a target for the next round of Monster Mash. Those regions are pretty worthless, too. Had they taken Paisly instead, they'd have over 2:1, and they could have used this peace time to build up fortifications to better protect the ports from any future onslaught. Same point applies to Sallowwild, though I don't remember if D'Hara actually lost that one.
Seems to me, looking at D'Hara, Arnor, Avernus, etc., a lot of people didn't take a cue from the last onslaught. Density matters, and it's gonna bit people back in the ass soon enough.