Seems to straightforward to have that many from that one story. Also, the implied battle droid two-pack (OOM and droid) for Clone Wars sounds too good to be true.
I'd believe Echo, maybe Gallia. Keeli is so so, an easy repaint but they aren't making the characters he was seen with (But then they made Mando cop and Satine, etc, so that's probably irrelevant). Speaking of such, I'd expect Greedo to be made before they got around to Citadel characters, ones that require new tooling, anyway. And the Mortis folks, too...but I'm thinking too much in order of episode aired.