I liked this take on things, and basically agreed with the complaints in here:
http://www.gofugyourself.com/fug-the-show-thoughts-on-the-good-wifes-series-finale-05-2016
It seems like JM went through so many different periods of her character being mad at and/or not filming with certain actors. Kalinda, of course: they didn't have a scene together for more than a year until their last one, and turns out they didn't even film that together. She and Cary didn't get along for a while. She and Will had a great affair and then were estranged from one another. Then this year and last she was so mad at Eli that they weren't talking, and again you just didn't see them filming together.
I have been attributing a lot of this to JM's personality, but I wonder whether it's possible that the filming schedule for a 22 episode series is just so punishing that it's just too hard to get the actors together? Like, maybe it's not that JM is really prickly, but insists she will only be on set 8 hours a day instead of 16 and because she's in basically every scene that means they need to come up with workarounds that allow her to shoot a lot of her scenes alone?