First of all I almost missed your post because you didn't reply to me directly. Second, that sounds unlikely. New projects are listed by the date when they were made public, not when they were approved for the index. If that's not the case, maybe there's a bug.
My mistake for not replying to you directly, but would kindly explain this to me then?
I just picked 2 random ones, but it's full of published titles, even months old, that gets featured in the most recent because they just got approved (The last updated field clearly reflects the changes needed behind the scenes done by the staff to enable indexing and visibility in the storefront)
Which, btw, totally makes sense to me. If this is a bug, it's so wide-spread it basicaly turned itself into a feature.
As I said, if you check any of those titles, they are ordered by the publication date UNLESS it's a new seller, in which case you can check the Last Update field for an hint on when the staff reviewed the page and gave approval. Infact, they are all done in batches, all showing the same values.
I'll try contacting costumer support, then.