This isn't to mention that they just had Thanksgiving, with Christmas soon. These are also days off, which would delay them looking at requests. If Merrystar is American, and under a Fandom contract, it's likely - especially with current workloads, such as moving to a new system - that she wouldn't get to adoption requests any quicker.
Keep in mind that under the new Adoption Approval system, the adoptions are divided by genres (TV/Movies, Anime, Games, etc) known as "Verticals". Even if Wendy were to re-up as Staff, there is no guarantee she'd be assigned to the verticals you're looking to see caught up.
In fact, no guarantee she'd be placed on Adoptions at all.