Does it bother anyone else?

[Gummy Bears and Sunshine]

It honestly just seems like something the writer's forgot. Which is kind of lame. I was wondering the same thing.

[Great Lakes haze]

I does bother me.

But I don't think it's because Maggie is somehow lacking in feeling.

I think it's because the writers forgot to deal with the issue. Or else they just got so focused on Maggie's and Glen's relationship that they lost sight of the fact that Maggie would be the kind of person who would go looking for her sister. Or they decided not to deal with it, because the show planners thought it was one thing too many to include, and the writers were overruled.

[Spooky]

I thought she should care a little more about her sister.
If I were her, the first words out of my mouth when I was reunited with each member of the group was have you seen Glen & Beth?
But all she cared for was where was Glen....gotta find Glen....

[Mockingbird]

I thought she'd give some sort of sympathy, but it is the apocalypse and because it's a long time after the whole sympathy train became daily routine. It was more like character build up, but it was a little strange.