I agree with you about still missing Chin I think there was still enough to do with his character for Kono there was only one thing left becoming a mom maybe Grace was not looking forward to that at all.

The show is still talking about both characters they are not forgotten. I hope when this show will end we will see them again I doubt it but I can hope right! I don't think both Characters got under paid Alex and Scott are the leads and like in every show they earn more and 5000 dollar less is not a reason to leave in my eyes but like you said we don't know what happend back stage.